Poland Gdansk 18 Groszy 1651 GR John II Casimir Vasa (1649-1668). Obverse: King's head to the right and an inscription around it. Lettering: IOAN CAS D G R POL & SVEC M D L R P. Reverse: Gdansk coat of arms with small letters. Lettering: MONET ARGENT CIVIT GEDANEN 1 8 G R 1651. (no passes at Polish auctions; very rare reverse legend). Silver. Scratches. KM 46; Parchimow. 1651/14 (R2) RARE