Poland 6 Groszy & 18 Groszy (1663-1668). John II Casimir Vasa (1649–1668). Averse: Large crowned bust right in linear circle. Reverse: Crown above three shields. Silver. KM 91; Averse: Crowned portrait bust right. Reverse: Crowned shield. (: After date). Silver. KM A94. Lot of 3 Coins