Frequently asked questions

The value of a coin is determined by several factors. These include the coin's age, the metal it is struck from, and the mintage (its rarity). The range of coin types and denominations is vast, so there are coins thousands of years old that are worth very little, while modern coins can be highly sought after by collectors. For more detail see our article or get in touch. We are happy to help and answer any further questions on the subject.

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A banknote's value depends on its age, rarity, condition (grading), denomination and demand among collectors. It can help to compare the banknote with similar examples sold at auction or listed in catalogues. You are welcome to use our archive, or contact us for more detail.

It is the process of assessing the condition of coins and medals by independent experts (for instance NGC). The process covers authentication, condition (the Sheldon scale 1–70) and sealing the coin in a permanently sealed plastic holder (slab) with a unique reference number. This guarantees originality, protects the coin from damage and makes it easier to trade.

More on NGC certification

Banknote grading is a similar process to coin grading, focused on assessing the condition of the note. Factors include the state of the paper, sharpness of print, presence of stains, tears and other defects. As with coins, we work with the internationally recognised company PMG, which grades banknotes on the Sheldon scale of 1–70.

We photograph the coin with you, draw up a contract and personally take it to the NGC office in Munich. The experts authenticate the coin, grade it on the standard Sheldon scale and seal it into a slab with a unique certification number and security features.

Detailed guide to NGC grading

NGC grading starts from 900 CZK for standard coins with a value of up to €300. The price depends on the market value of the coin, the metal and any historical origin (for example ancient coins). The whole process takes roughly 3–6 months. Our current price list is available via the link below.

NGC grading price list – click here

PMG certification starts at 1,250 CZK for banknotes worth up to €1,000. The overall cost depends on the declared and market value of the note.

Before selling a collection or a single coin, medal or order, it is sensible to have it valued by an expert. An in-person inspection is best for determining condition and price; photographs can also be sent. If you would like advice, a valuation or a sale, send photographs to info@aurea.cz and we will advise you on the next steps by email.

Contact form – click here

There are several options. We buy material from antiquity through to the modern era – historical, circulation, gold and silver coins, banknotes and faleristics. Funds are paid out immediately in cash or by express bank transfer. More exclusive items can be entered into one of our prestigious auctions, where they often realise the highest return. Consultation is free and non-binding. Written expert appraisals and valuations are issued for a fee.

More on buy-back and valuation

We are based at Ostrovského 1332/4, 150 00 Prague 5 – Smíchov. Current opening hours are on the contact page. You can email info@aurea.cz or call +420 797 626 629 or +420 797 626 623. Meetings outside business hours can be arranged by appointment.

More contact details and a map

Our expertise and auction records often attract media attention. Take a look at the interviews, articles and reports in which our experts comment on the numismatic market or on notable finds.

View our media coverage

Selling old banknotes works much like selling coins. You can offer them at auction, through a direct sale, on online marketplaces or to collectors directly. As with coins we have a notaphily specialist on the team, and you can contact them at any time.

How to contact us – click here

A coin collection can be sold directly via buy-back. Commission sale at a price you set, or consignment to auction, are also available. In the shop we serve you on the spot; for larger collections it is better to send photographs in advance or arrange a meeting. You can contact us at any time.

Contact form – click here

A banknote collection can be sold through the same channels as a coin collection: at numismatic auctions, in specialist shops, on online marketplaces or directly to collectors. As with coins, a consultation with an expert can improve your chances of a strong sale – and we have just such a specialist on the team. Send us a few photographs and we will be happy to help.

How to contact us – click here

We warmly recommend that every new collector studies the subject before starting a collection. Numismatics and notaphily form a broad and complex discipline, so it is important first to learn the basics. Books are the best friend of any new collector (see our e-shop). It also helps to settle on a period you want to collect, then become familiar with identifying coins, reading legends and assessing condition. New collectors will benefit from attending local Czech Numismatic Society (CNS, founded in 1919) meetings or the nearest coin fair. If you have questions, please get in touch.

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Starting a banknote collection is similar to coin collecting. Choose a field of interest, read the literature, attend fairs and auctions and join the collector community. Learn to assess condition and authenticity.

How to contact us – click here

No — you can drop in at any time during opening hours without an appointment and a colleague will look after you. Inspecting a smaller lot takes from a few minutes to an hour; for large collections it is better to send photographs in advance or arrange a meeting.

Opening hours and contacts

Yes — we photograph the specific piece being sold, so you see exactly what you will receive. Where an illustrative photo is exceptionally used, this is stated explicitly on the product.

Yes — as a consumer you have the right to withdraw from the contract within 14 days of receipt for unused goods. The procedure is set out in the e-shop terms and conditions.

Our experts make this straightforward for you. A valuation requires specialist knowledge – identifying the type, assessing condition, determining rarity and gauging market demand. We offer a free, non-binding consultation for buy-back or auction consignment; written expert appraisals and valuations are issued for a fee. We draw on current auction results and will always give you an objective view on sale or investment.

More on buy-back and valuation

If you need an official document – for example for probate or divorce proceedings, or as confirmation of value – we can issue a written expert appraisal. This is a standalone A4 document setting out our experts' opinion (Ing. Veselý alone has more than 40 years of experience). It is used for objective assessment in situations that do not require direct NGC or PMG certification. The appraisal fee starts at CZK 3,000 and it is issued only after an in-person inspection of all items; if you subsequently sell through us, the fee is offset.

More on expert appraisals

That depends on the type and rarity of the item. For rare and highly collectable pieces, auctions can deliver markedly higher prices thanks to competitive bidding. On the other hand, cash buy-back offers immediate payment and zero risk. It is always best to discuss the specific item with our expert and we will recommend the most advantageous route.

Our experts in numismatics and notaphily can streamline the process for you. We provide professional identification and appraisals of coins and banknotes backed by many years of experience in both fields.

Valuing an old coin requires specialist knowledge and involves several steps:

1. Identification of the coin. To value the piece we need to determine the type, issuing authority, variant and where it was struck.

2. Condition: assessing the state of the coin is critical. Some very rare coins in poor condition carry minimal value, while a common coin in beautiful condition can be highly collectable.

3. Rarity: especially with modern coins, value depends on mintage. With older coins, rarity is judged from market availability.

4. Historical significance: certain coins are tied to important historical events – examples include the "legionary" denarii of Mark Antony or the strikes of the Bohemian Estates uprising of 1618–1620.

5. Market demand: value is also driven by current collector demand.

AUREA Numismatika offers identification and valuation of coins, medals and similar pieces.

The process for valuing an old banknote is similar to that for coins:

1. Identification: establish the basic facts – country of issue, year of issue, denomination and series.

2. Condition (grading): the state of the note is essential. Cleanliness, the absence of tears, stains and other damage are all assessed.

3. Rarity: find out how many examples were issued and how scarce the note is on the market.

4. Historical significance: events tied to the note can raise its value.

5. Market demand: value is also influenced by current collector demand.

Get in touch for a professional valuation of your banknote. We offer expert appraisals and consultations.

There are several ways to establish the value of an old coin:

1. Consultation with an expert: a numismatist can give you precise information about the piece and determine a realistic market price.

2. Auctions and market prices: tracking auction results and market prices for similar coins gives you a sense of value.

3. Catalogues: numismatic publications often estimate approximate values for coins and medals; reliability depends on the age and place of publication.

AUREA Numismatika offers expert valuations and consultations to help you determine the value of your coins.

How to contact us – click here

Determining the value of an ancient coin involves the following:

Take one of the most widespread ancient Greek coins as an example: a tetradrachm of Alexander the Great. First, authenticity must be confirmed. Next, the type has to be identified – where and when it was struck. Many variants of this coin exist, struck both during Alexander's lifetime and after his death, and some are far more valuable than others. Finally, market value and collector demand for that specific type need to be established.

Our firm specialises in valuing and selling ancient coins. Get in touch for more information.

How to contact us – click here

Coin valuation works as follows: the coin is examined by our expert, who determines authenticity and condition. The metal, historical value, state of preservation and other factors all play a role. The expert then identifies the type more closely and its specifics, and on that basis sets a realistic market value. Market value is most often based on the metal value or on documented sale prices in the market.

Banknote valuation involves:

1. Hand-over: the note is handed to a notaphily expert.

2. Condition assessment (grading): the note is carefully examined and graded.

3. Identification and research: the expert identifies the note and researches its history and rarity.

4. Setting the value: based on grading, rarity and market prices, a value is set.

5. Certification: where useful, the note can be certified.

The price of a coin valuation varies according to several factors, such as complexity and the coin's value. We are happy to advise free of charge; written expert appraisals are issued for a fee. Do not hesitate to contact us with no obligation.

Contact form – click here

The cost of valuing a banknote depends on complexity and the value of the note. We are happy to advise free of charge; written expert appraisals are issued for a fee. For an exact quote, please contact us with no obligation.

Contact form – click here

Coin buy-back works as follows: a numismatic expert receives the coin, identifies it and then values it. Based on the valuation we agree an offer for the coin, and once agreed the amount is paid out by your preferred method — in cash up to the statutory limit, or by bank transfer sent immediately. Enquiries sent by email or through the form usually receive an offer the same day, within two working days at the latest. The purchase contract can now also be signed electronically, so the whole buy-back can be handled remotely.

More on buy-back

The buy-back procedure for banknotes is similar to that for coins:

1. Hand-over: the note is handed to an expert.

2. Valuation: the expert values the note.

3. Offer: based on the valuation, an offer is made.

4. Payment: once agreed, the negotiated sum is paid out.

Pinning down a coin's rarity in a sentence is not easy. There is a range of coins struck to mark significant events or by significant people, which drastically raises their value. Condition matters too: even a relatively common coin in exceptional state can be highly valuable. Errors of striking and the size of the mintage also push prices up. For some types, value derives largely from the precious-metal content.

The most valuable banknotes include:

1. Rare historical notes: issued in limited quantities or with historical significance.

2. Error notes: notes with a printing error.

3. Notes with unique serial numbers: low or special serial numbers.

The buy-back price depends on the metal, rarity and condition. For bullion pieces it follows the current precious-metal price; for collector coins the year and grade decide — which is why rarer coins carry a price range rather than a fixed list price. We will quote your items free of charge: just send photographs via the form on the buy-back page.

As standard, buy-back takes place at our shop, or remotely after you send photographs. A personal visit to a collection is possible by individual arrangement — typically for larger estates or long-standing clients. A visit and on-site valuation carry costs, which are borne by the client if no purchase takes place.

More on buy-back

Start with a goal, a budget and an investment horizon. Standard investment coins – for instance the Krugerrand, Wiener Philharmoniker or Maple Leaf – trade chiefly on metal content, purity and the current gold or silver price. Purity varies: the Krugerrand is struck in 916.7/1000 gold, while the Wiener Philharmoniker and Maple Leaf are 999.9/1000 fine. Historical and collector coins are judged differently: condition, rarity, provenance and collector demand matter. A one-ounce coin has a lower entry cost than a large bar or ingot, but when comparing the price per gram, always watch the premium over the metal price.

With gold coins, focus on purity, weight, liquidity and the premium over the current gold price. For a purely investment purchase, well-known and easily traded coins make sense; with historical pieces, collector value is added to the metal value, based on condition, rarity and the market. When comparing a coin with a bar, look not only at the total price but also at the price per gram and at the buy/sell spread.

Investing in silver coins is similar to gold. Silver coins can be more attractive thanks to their lower price, and a much wider range of types and designs is struck. Mintage matters: some limited strikes can sell well above the bare metal value.

Among the most popular and most liquid are the world-famous Krugerrand from South Africa, the American Silver Eagle from the USA, the Canadian Maple Leaf and the Austrian Wiener Philharmoniker. We carry a wide range of these on our site.

Investment banknotes are usually rare, well-preserved pieces with historical or collector value. They include rare issues of older banknotes and limited series of modern notes. For specific recommendations, please reach out to our notaphily experts, who will be happy to advise.

On the basis of several factors. The first is the precious-metal content and purity (most investment coins weigh one troy ounce, 31.1 grams, with a purity of 999/1000). There are also modern investment coins struck in smaller mintages, which lifts them above the value of the metal alone.

Valuing investment banknotes covers condition, rarity and historical significance. The factors weighed include the state of the paper, sharpness of print and any damage. Certification companies such as PMG grade banknote condition on the Sheldon scale of 1–70. For a professional banknote appraisal we offer certification services in partnership with reputable institutions.

Modern collecting covers coins and banknotes from roughly the 20th century onwards. Such coins and medals are well documented in catalogues, so collectors focus on individual years and mints. Many modern collectors target coins struck in limited mintages. Our auctions and online shop carry a wide range of modern collectables.

Modern notaphily focuses on collecting and studying banknotes issued in recent times. Collectors judge notes not only on denomination but also on design, history and limited availability. Our notaphily experts can advise you on which modern notes carry potential for growth in value.

For ČNB commemorative coins the issue, mintage and finish (standard vs. proof) decide — catalogue prices can differ considerably from the market. Commemorative coins are issued by the Czech National Bank under Act No. 6/1993 Coll., on the Czech National Bank. See the overview of issues on the ČNB coins page; we will value your piece free of charge.

The most expensive lot in our history was the extremely rare 10 Ducat 1620, Prague–Škréta (Frederick of the Palatinate), sold in 2022 for an impressive 10,255,000 CZK. Other big records include the 10 Ducat of Ferdinand II (6,660,000 CZK), the 5 Ducat 1938 (6,120,000 CZK) and from the modern era the legendary 5 Heller 1924, which sold for 1,550,000 CZK.

View all our records here

The oldest coins in the world emerged in Asia Minor, in modern-day Turkey. In the territory of ancient Lydia, around the 7th century BC, gold coins were struck from a metal called electrum (an alloy of silver and gold). The coin shows a majestic lion's head facing right with an open mouth. The striking of these coins was driven by the growth of trade in Asia Minor. Comparably old are the Chinese pre-coinage tokens known as "spade money", cast from bronze, made in the shapes of objects such as a knife or a key.

Among the most valuable historical coins is the Flowing Hair Dollar of 1794, sold in 2013 for more than ten million dollars, or the Brasher Doubloon of 1787. Prices of such coins can reach tens of millions of crowns. Their rarity and price flow from a compelling historical story behind the striking. On our website, in the auctions section, you will find information on significant sales and valuable coins.

The most valuable historical banknotes include the 1,000-dollar bill of 1890 known as the Grand Watermelon, which sold for more than three million dollars. Other rare notes include the German hyperinflation issues of the 1920s and old Chinese banknotes. For more, see the articles on our website or contact our experts.

The most popular coins are those tied historically to our country. They include modern Czech Republic strikes and coins from the Czechoslovak Socialist Republic and the First Republic. A large share of collectors also focuses on the Habsburg period, when the dynasty ruled our territory with breaks between 1526 and 1918. Equally interesting and rich is medieval coinage, dominated by the striking of the Prague groschen (1300–1547) and the denarius (10th to 13th centuries).

Collectors in the Czech Republic often pursue notes from the First Republic, the Protectorate of Bohemia and Moravia, and the Czechoslovak era. Banknotes from the Austro-Hungarian period are also popular.

Collecting trends in numismatics shift over time, but at present there is strong interest in Czechoslovak commemorative coins, in silver strikes of the Habsburgs, and in medieval silver coins. For current trends and news, see our articles on the AUREA website.

In notaphily, banknotes with historical significance, error prints and limited editions are popular. Interest is also growing in banknotes from developing countries and in special issues.

There is a wide range. In simple terms, coins can be divided into circulation coins (those actually used in daily commerce), commemorative coins (struck to mark an event) and investment coins (covered above; they are generally struck from metals of high fineness, commonly 999.9/1000 for gold). Coins should be distinguished from medals: a coin has an assigned or stated denomination, whereas a medal is a purely artistic object without a denomination and was not used for payment.

Banknotes can be divided into circulation notes, commemorative notes, error notes and limited editions. By issuer, a further distinction is made between banknotes (issued by a central bank) and state notes (issued directly by the state). Each type has its own collector value.

Common First-Republic years of the St Wenceslas ducat (3.49 g of gold, fineness 986/1000) trade in the tens of thousands of crowns. Rare years from the late 1930s reach hundreds of thousands to millions. Year, grade and provenance decide — we offer exact attribution as part of our appraisal services.

Common Prague groschen of John of Luxembourg or Charles IV can be had for a few thousand crowns; the ruler, strike centring and condition decide. Exceptional pieces — countermarked groschen or heavy presentation strikes — reach hundreds of thousands. More in the encyclopedia entry on the Prague groschen.

It is easy with us. We are a local partner: bring the coin to our shop, we will photograph it, draw up a contract and personally take it to the NGC office in Munich. The certification process takes 3–6 months. Payment is made on collection of the certified material in the slab.

See the NGC certification guide

Information on our trading and on AUREA-specific certificates can be found in our terms and conditions and on the goods being sold. We also issue certificates of provenance confirming the purchase of a rare item from our established company.

More on certificates

NGC (Numismatic Guaranty Corporation) certification is a process in which independent experts verify the authenticity, quality and condition of a coin or medal. The coin is then placed in a plastic holder (slab) that cannot be opened without damage. The slab displays information about the coin and its grade. The grade is given on the Sheldon scale from 1 to 70, where 70 denotes a perfectly preserved coin. Each holder carries a unique certification number that can be looked up in an online database.

Coin grading – price list and more information

PMG (Paper Money Guaranty) certification is a similar process to NGC certification, but for banknotes. Experts assess authenticity, condition and quality, and the note is sealed in a protective holder with a unique certification number. More information is available on the PMG website.

PMG

To obtain NGC certification, the coins need to be brought to our shop. Our specialists will assess whether the coin is suitable for certification and estimate the likely cost. All you need for hand-over is an identity document; we remain responsible for the coins until you collect them again. We cannot guarantee NGC turnaround times or the final grade. We then send the coin to NGC, where the grading itself takes place. Turnaround is typically 3–6 months.

Coin grading – price list and more information

The process for PMG certification is similar to NGC. Banknotes are brought to our shop, where our specialists assess them and forward them to PMG.

PMG

Assessing a coin's authenticity involves several steps, which can include the following:

1. Visual inspection: examine the coin under a loupe or microscope. Look not only at the faces but also at the edge, to spot damage or traces of mounting.

2. Weight and dimensions: weigh the coin. Gold has a density of 19.3 g/cm³ and silver 10.5 g/cm³, so a marked deviation in weight at the correct dimensions gives a counterfeit away. Historically, coins were struck to a defined coinage standard with a fixed weight. Dimensions matter especially for modern coins, struck automatically, which should match one another precisely.

3. Magnet test: some counterfeits are magnetic, while genuine coins are usually not. Gold and silver coins in particular should not react to a magnet.

4. Expert appraisal: the best way to verify authenticity is to have the coin assessed by an expert or a certification company such as NGC.

Assessing a banknote's authenticity can involve:

1. Visual inspection: check the note for watermarks, security features and microtext.

2. Ultraviolet light: some notes have security features visible only under UV.

3. Touch analysis: genuine notes have a specific texture and a particular firmness of paper.

4. Comparison with a reference: compare against a known authentic example of the same type.

5. Expert appraisal: the best way to verify authenticity is to have the note assessed by an expert or a certification company such as PMG.

You can obtain an expert appraisal for coins by bringing them to our shop, where our experts with many years of experience will assess them. We stamp the appraisal and seal it for you. Our appraisals are recognised for probate, inheritance and divorce proceedings; Ing. Veselý has more than 40 years of experience and signs not only on behalf of the company but in his own name. Details of the service are on the expert appraisal page.

In the form, choose the option "Appraisal"

An expert appraisal for banknotes is obtained in the same way as for coins. Bring the notes you want assessed to our shop and our specialists will provide a detailed assessment.

Our company runs large hall auctions and popular eAuctions. We hold auctions several times a year, usually every three months. Hall auctions are held in person (often in prestigious venues such as the OREA Hotel Angelo Prague in Smíchov), carry a unique atmosphere and are also streamed live via LiveBid.cz. eAuctions run entirely online on the same platform from the comfort of your home. With us you can bid on coins, medals, banknotes, ancient pieces and faleristics.

See the calendar of upcoming auctions

1. In person: bring the items to our shop at Ostrovského 4, 150 00 Prague 5.

2. By email: send photographs and a description to info@aurea.cz.

3. Online form: upload photos directly via our website.

4. By phone: arrange a meeting on 604 273 741 or 797 626 623.

We will value your material free of charge and suggest the upcoming auction in which it would fit best. We accept consignments all year round; intake usually closes about a month before the auction — current dates are on the auctions page.

More on buy-back and auction consignment · Selling at auction

An auction is a method of selling an item through an auctioneer, where interested parties submit their bids and the item is sold to the highest bidder. This process can achieve a higher price for rare or highly collectable items.

More information here

There are several ways to take part:

1. In person in the hall: register at the auction venue and you will be given a bidding number.

2. Online (in both hall auctions and eAuctions): follow and bid live through the LiveBid.cz auction system.

3. By telephone: arrange participation in advance and we will call you during the auction and bid on your behalf according to your instructions.

More information here

Taking part in a banknote auction works in the same way as for coins. You can participate in person, online or by telephone. Details and conditions are available on LiveBid.cz.

More information here

A hall auction takes place at a set venue and time, where interested parties submit their bids directly to the auctioneer. To register for a hall auction, arrive before the start; after an identity check you will receive a bidding number. All bidding is recorded and streamed online on LiveBid.cz.

More information here

An online auction runs in real time on the LiveBid.cz platform. You can place your bids online from the comfort of your home – simply register and log in to the auction system. Auction lots can be browsed, set with maximum bids and bid on live during the event. Our auctions are also visible on platforms such as Numisbids.com.

More information here

1. Registration: you must be registered in the LiveBid.cz auction system.

2. Identity verification: your identity will be verified at registration or at the auction venue.

3. Deposit: if you intend to bid for a larger sum and we do not yet know you, a deposit is required.

4. Adherence to the rules: bidders must follow all instructions and the auction rules, which are binding on every participant.

How to buy at auction

Auctions are governed by Act No. 89/2012 Coll. and follow clearly stated rules. Bidding takes place online or in the hall under the conduct of the auctioneer. The winning bid is confirmed by the hammer, at which point the contract of sale is concluded. The successful bidder is required to pay the hammer price plus the buyer's premium. Payment can be made in cash, by bank transfer or cash on delivery (COD). Returns are restricted; authenticity is guaranteed.

Full current auction rules here

Orders are binding. Payment must include the buyer's premium and any handling fee. Returns are restricted; authenticity is guaranteed. Personal data is protected; by registering you consent to receiving information about upcoming auctions (commercial communications).

Auction terms of business – click for the full text

The most expensive lot was the 10 Ducat 1620, Prague–Škréta, sold for 8,550,000 CZK. Ducat gold is traditionally struck at a fineness of 986/1000 — see the ducat entry. Other records include the 10 Ducat 1636, Olomouc–Huber at 5,550,000 CZK and the 5 Ducat 1938 at 5,100,000 CZK. Significant prices have also been achieved by rare historical medals and banknotes.

View them all here

The history of our auctions is available on the Livebid.cz platform, where you can see realised results. Some of our old auction catalogues can also still be obtained. Those we no longer hold will be – or already are – in our archive.

History on the Livebid.cz platform

If we no longer have a catalogue as part of the social initiative

More on "Treasures from the past" on sale in the old auction catalogues category, you can find it in our archive of old auction catalogues in digital form, free to download.

Archive of our auction catalogues

You are warmly invited to our annual hall auctions, which we hold twice a year. Registration can be completed on site. Our hall auctions are held at the OREA Hotel Angelo, Radlická 3216, Prague 5–Smíchov. More here

Yes, always. All our auctions are streamed live on LiveBid.cz. Once registered, you can bid from the comfort of your home.

Yes – on request we offer this service to clients for lots of their choice.

Viewing of the material always takes place ahead of the auction at our bricks-and-mortar shop and, for hall auctions, also at the venue before the auction begins.

For hall auctions, you can pay on the spot. For online auctions, you will receive a link to choose collection in person so that we can prepare the material for you.

Prices appear on LiveBid immediately after the hammer falls and are kept available historically at https://livebid.cz/organisator/aurea/archived

Free expert consultation, NGC certification and expert appraisals. Buy-back and sales. Czech National Bank coins and gold or silver investment coins. If a client wishes, we can also arrange conservation or restoration work.

Send photographs through our online form or by email to info@aurea.cz, or call 797 626 629.

We settle and pay out as quickly as possible after the auction — we actively chase buyer payments and take care of everything, so proceeds are usually paid out within two to three weeks of the auction. For exceptional consignments an advance on hand-over can be agreed.

How selling at auction works

We hold auctions several times a year, usually every three months — hall auctions alternate with eAuctions. Current dates and consignment deadlines are in the calendar on the auctions page; we accept material all year round.

We set the starting price — it is meant to attract bidders, not put them off. By agreement, a reserve can be set below which the item will not sell. We are happy to estimate the achievable price in advance.

Most clients use Czech Post insured letters covered to the full value of the shipment; Zásilkovna is also possible. We first conclude a contract for online signature and send instructions on how to pack the goods and whom to name as the recipient. The offer is confirmed after delivery and inspection of the material.

More on buy-back

Coin collecting requires several basic supplies that help store, protect and catalogue coins. The most important are: 1. Albums and coin holders: albums and capsules protect coins from damage. 2. Loupes and microscopes: these let you inspect coins in detail and help identify condition and verify authenticity. 3. Tweezers: special flat-tipped tweezers allow coins to be handled without risk of damage. 4. Gloves: white cotton gloves prevent fingerprints on coins. Coins of base metal in particular can suffer long-term damage from being handled with bare hands. 5. Catalogues and guides: publications with information on coins, their history, values and grading. 6. Protective capsules: individual capsules that protect each coin separately. The highest level of protection is a slab — a sealed holder from a grading company. 7. Cabinets and safes: secure storage for your collection.

Banknote collecting also calls for some specific supplies: 1. Albums and banknote sleeves: these protect notes from damage, moisture and dust. 2. Loupes and microscopes: tools for detailed examination of notes, important for identifying authentic pieces and their condition. 3. Gloves: cotton gloves protect notes from fingerprints and grease. 4. Catalogues and guides: books and catalogues provide information on values and history. 5. Protective sleeves: holders designed specifically for banknotes that protect them from damage. 6. Cleaning products: specialist products for gentle cleaning of banknotes. 7. Safes and cabinets: secure storage for valuable banknote collections.

Coin albums are available in various specialist shops and online retailers: 1. Aurea.cz – we offer a wide range of albums and other coin-collecting supplies. 2. Specialist numismatic shops – many bricks-and-mortar shops focus on numismatics and stock albums. 3. Online marketplaces – sites such as eBay, Amazon and Czech e-shops specialising in collector supplies.

Banknote sleeves can be found in the following shops: 1. Aurea.cz – a wide range of banknote sleeves and albums. 2. Specialist shops with collector supplies – physical and online retailers stocking collector supplies. 3. Online marketplaces – sites such as eBay, Amazon and specialist e-shops.

The best coin holders are those that offer maximum protection and keep coins in the best possible condition. When looking for coin holders, focus above all on products labelled PVC-free or museum grade. 1. Coin capsules: these plastic capsules offer individual protection for each coin. 2. Albums with rigid pages: albums with transparent pockets allow safe storage and easy viewing. 3. PVC-free sleeves: free of PVC and plasticisers, so they will not react chemically with the metal and cause damage.

For protecting banknotes the best sleeves are: 1. Acid-free plastic sleeves: protect notes from chemical reactions that could damage them. 2. Albums with protective films: such albums allow safe storage and viewing of notes. 3. Archival sleeves: specialist holders designed for the long-term storage of valuable paper collections.

Coin collectors and those interested in numismatics have a wide range of quality books available, offering detailed information on history, grading and cataloguing. Some of the titles we recommend and stock are: 1. FROUZ, Pavel. Sbíráme mince. Prague 2010 2. NOHEJLOVÁ-PRÁTOVÁ, Emanuela. Základy numismatiky. Prague 1975 3. NOLČ, Jiří. Numismatika – peníze v českých zemích. CP 2009 4. VOREL, Petr. Od pražského groše ke koruně české. Prague 2000

KRAUSE, MISCHLER. Standard Catalog of World Coins 16th–21st Century. 1972–2021. The flagship and largest catalogue of coins from around the world. Each individual volume covers one century (for example 1601–1700) and lists alphabetically all known strikes of the world's states. Specialist editions exist for gold coins or tokens. The so-called "Red Book" – GARRET, Jeff et al., A Guide Book of United States Coins 2021. Whitman Pub. 2021 – the standard catalogue for collecting US coins. ARNOLD, KÜTHMANN, STEINHILBER, Großer deutscher Münzkatalog von 1800 bis heute, Battenberg 2022 – covers the coins of the German states and unified Germany from 1871 to the present day. Czech catalogues: VESELÝ, Roman. Price list of coins and medals 2025 – Czechoslovakia, Czech Republic, Slovakia (coins and medals from 1918 to 2025). Prague 2024.

For banknote collectors the following recommended titles are available: 1. HEJZLAR, Pavel. Papírová platidla na území Čech, Moravy a Slovenska 1900–2022. Prague 2022 2. FILIP, Vladimír. Papírové peníze 1759–1918 – from Maria Theresa to Charles I. Brno 2005 3. KUTINA, Zdeněk. Znáte papírové peníze? Prague 2024 4. The so-called "Pick catalogue" – PICK, Albert. Standard Catalog of World Paper Money – General Issues, 1368–1960, 16th edition, Krause Publications 2016. A comprehensive catalogue similar to Krause-Mischler. It covers banknotes from across the world, focusing on a defined period – the 25th edition, for example, covers 1961–2019.

The newest auction catalogues can be found on the websites of auction houses and numismatic societies. For current catalogues and auction offerings, visit: 1. Aurea.cz – our auction house regularly publishes catalogues with detailed descriptions and photographs of lots. 2. LiveBid.cz – the Czech online auction platform, where you can find current offerings in numismatics, notaphily, faleristics and also art. 3. Numisbids.com

For more information on coin collecting you can use the following sources: 1. Aurea.cz – numismatic articles. Our site offers a range of articles and guides for collectors. 2. "Coinsweekly.com" – a site operating in more than a hundred countries. You will find interesting articles on numismatics, and upcoming auctions and notable lots are also featured. 3. "Coinweek.com" – a website based in the USA. It contains a wealth of articles and publications on numismatic topics, not only US-focused.

For more information on banknote collecting you can use the following sources: 1. Aurea.cz – notaphily articles. Our site contains a range of articles and guides for collectors. 2. "Banknote Reporter" – the magazine and its online edition cover banknote collecting. 3. "Paper Money Guaranty (PMG)" – PMG offers resources and articles on grading and collecting banknotes.

1. VOREL, Petr. Stříbro v evropském peněžním oběhu 16.–17. století (1472–1717). Pardubice 2009 2. PETRÁŇ, Zdeněk. První české mince. Prague 1998 3. KLIMENT, SKRBEK. Mince království Českého za panování rodu Habsburského od roku 1526. Volumes I–III plus image supplement. Pardubice 1891–1913 4. Numismatické listy and the Numismatický sborník.

We publish the current price list of coins and medals (Czechoslovakia, Czech and Slovak Republics) online on the price-list page. Our archive of auction catalogues with realised prices is another research source.

Alongside the popular ten-crown pieces there are genuine legends. The 5 Heller 1924 is the rarest circulation coin of all, sold at auction for more than 1.5 million CZK. Then there is the 10 Crown 1933, the silver "phantom" of the First Republic, of which only a handful of examples escaped melting. Also highly valuable are the nickel 5 CZK 1937 and the 25 Heller 1932.

Complete overview of rare coins of the Czech Republic and Slovakia

Our bimetallic fifty-crown is regarded as one of the most beautiful coins in the world. While the 1993 issue is entirely common (more than 35 million struck), there are years with fewer than 30,000 pieces struck, which have considerable collector potential.

The rarest years are: 1997, 1998, 1999, 2001, 2002 and 2003. If you come across one, watch the condition. An unscratched coin in mint lustre is worth many times more than a circulated example.

A list of all rare years of the 50 CZK coin is here

Many people believe that the ten-crown coin with the motif of the Prague Astronomical Clock from 2000 is rare. The opposite is true. This millennium coin was struck in a huge mintage of 10,000,000 pieces, is commonly found in circulation and is worth exactly 10 CZK.

The real rarity from 2000 is the ten-crown coin with the classic motif of St Peter's Cathedral in Brno (Petrov). It was struck only for collector sets, in a mintage of just 30,000 pieces. If you find a Petrov dated 2000 in your wallet, you are holding a valuable coin. Both varieties were struck by the Czech Mint in Jablonec nad Nisou.

More information and how to tell them apart

This special variant was made as a trial striking in a limited mintage of just 1,000 pieces. On the standard ten-crown coin a line passes through the letters "Kč" roughly in the middle. On the rare "small Kč" variant the lettering is more delicate and the line crosses the letters much higher up.

This unique coin can fetch six-figure sums at auction, in contrast to the standard 10 CZK 1993, of which 70 million are in circulation.

Photographs and detailed identification points

1. Rarity: notes issued in limited numbers or with unique features are often more valuable. 2. Historical value: notes with historical significance or tied to important events can carry higher value. 3. Condition (grading): the quality and condition of the note plays a major role. Notes without stains, tears and with minimal wear are more valuable. 4. Serial number: notes with unique or low serial numbers (for example 000001) can be highly prized. 5. Printing errors: notes with mis-printing such as inverted images or missing design elements can be very attractive to collectors. 6. Authenticity: authenticity is essential. Counterfeit notes have no collector value.

There are several ways to identify gold: 1. Acid test and spectrometer: a common method in which gold is tested with special acids that react only with gold of a given purity. The spectrometer examines a sample of the precious metal using X-rays. These react with the atoms, which then emit secondary radiation. From this radiation the instrument measures the purity of the metal in the item. Some spectrometers are limited to a range typically of 400–700 nm. 2. Weight and density: gold has a specific density (19.3 g/cm³) that can be measured. 3. Hallmarks: genuine gold jewellery and coins often carry hallmarks confirming their purity. These mark jewellery and re-strikes from the second half of the 19th century onwards; marks from the 18th century and earlier are rarer. 4. Magnet test: gold is non-magnetic, so if the item is attracted to a magnet, it is unlikely to be gold.

To determine the authenticity and value of a gold coin, several aspects need to be considered: 1. Weight and dimensions: each gold coin has a specific weight and a set of dimensions. Deviations may suggest a forgery. 2. Purity: gold coins are usually 24 ct, 22 ct or 21.6 ct; traditional ducat gold has a fineness of 986/1000. 3. Hallmarks: some modern gold coins and re-strikes bear hallmarks confirming purity and origin. 4. Sound test: genuine gold coins have a characteristic ring when tapped gently on the edge. The tone should be long and clear. Tin coins, by contrast, produce a dull, short sound.

As with gold coins, silver coins can be verified in several ways: 1. Weight and dimensions: silver coins have specific weights and dimensions that should match the official figures. Pure silver has a density of 10.49 g/cm³. 2. Purity: historically the purity of silver coins varied widely. For medieval coins purity is therefore not a reliable indicator. 3. Hallmarks: usually found on medals from the 19th century onwards. On coins they appear only rarely. 4. Sound test: silver coins give a clear, ringing sound when tapped gently on the edge, much like gold. 5. Magnet test: silver is non-magnetic, so the coin should not be drawn to a magnet.

At Aurea.cz we take environmental protection seriously. We seek to minimise our impact on nature through several distinctive initiatives – from reusing packaging and selling off old catalogues, to supporting new collectors with gently used supplies.

Read more about our vision and initiatives

The aim of this initiative is to give used numismatic supplies and items a second chance. Instead of ending up in landfill, we offer them at very favourable prices (for example used albums or capsules). In this way we support sustainability while helping people enter numismatics more cheaply.

More on the Second Life project

We believe that even an old box can be beautiful. We carefully store and reuse all our filling and packaging materials for sending e-shop orders. This drastically reduces waste and saves natural resources. Do not be surprised if your parcel arrives in a "recycled" box – it has a story.

More on the Box with a story project

Old auction catalogues are full of history, splendid photographs of coins and numismatic data that should not sit gathering dust in a stockroom. We offer them at symbolic prices to researchers, collectors and students. Some catalogues are also made available digitally, free of charge. Each catalogue holds hundreds of lots from the history of numismatics.

Browse Treasures from the past

At Aurea.cz we take environmental protection seriously. We try to minimise our impact on nature through several initiatives:

We recycle packaging – all boxes and packaging are carefully stored and reused.
We sell used numismatic items – giving them a second life rather than letting them go to landfill.
We offer old auction catalogues – rescuing them from being thrown away and letting them delight new owners.
We work to reduce waste – in every area of the business we look for ways to be more sustainable.

We believe every company has a responsibility to society and to the planet. Our initiatives focus on sustainability, supporting the community and preserving historical heritage. We want to show that even small steps can have a big impact.

Every purchase in our e-shop supports our work on sustainability and the preservation of history. You can also help by spreading the word about our projects among friends and on social networks. Your support helps us make the world a better place.

Yes – we are continuously looking for new ways to be more sustainable and useful to society. Follow our website and social media, where we share news of new projects and initiatives. If you have an idea for us, please share it – we will be delighted.