A very nice piece with a distinct edge.
A variant with the abbreviation CASIMI in the obverse legend and ARGEN PO in the reverse legend.
Obverse: a royal bust in a laurel wreath, wearing armor and a cloak, with visible armor sleeve straps, and the Order of the Golden Fleece, facing right; the legend in the rim reads: “
” “IOAN•CASIMI-DG REX P & S•”;
Reverse: a five-field heraldic shield crowned with a jeweled crown within a closed ring, featuring the coats of arms of the Crown of the Kingdom of Poland, the Grand Duchy of Lithuania, and the “Sheaf” coat of arms of the Vasa dynasty; on either side of the shield, the denomination “I-8”; the outer ring bears an inscription divided by the Wieniawa coat of arms of Bogusław Leszczyński, Grand Crown Treasurer, and the initials “MW”: MONET•ARGEN-REGNI•PO:1653;
