01 / 0150 Kčs 1977 - Ján Kollár, PROOF — image 1 of 12x1x01 / 01SpecificationsMetalStříbroFineness700/1000Weight13 gDiameter31 mmFace value50 KčsYear of issue1977FinishPROOFIssuerČeskoslovenskoDesignerAndrej PeterCountry of originČeskoslovenskotémaJán Kollár