Poland
John II Casimir Vasa (1649–1668) – Crown coins
A bust of the king wearing a laurel wreath divides the legend; on the reverse, the emblem of the Wieniawa coat of arms (Bogusław Leszczyński), with the letters MW (Moneta Wschoviensis) below it, the obverse legend reads CASIM, and the reverse legend ARGEN REGNI PO
features visible beneath a dark patina
