A fine piece with good detail, featuring a patina on both sides.
Obverse: within a beaded border, a royal bust wearing a crown, armor, and a cloak fastened with a jewel, with the Order of the Golden Fleece, facing right; in the outer border, the legend:
IOAN•CASIMI•D:G•REX•POL•& SVEC•M•D•L•R•P:;
Reverse: within a beaded border, a five-arch crown with five rosette-shaped fleurons; a five-field decorative heraldic shield bearing the coats of arms of the Crown, the Grand Duchy of Lithuania, and the “Sheaf” coat of arms of the Vasa dynasty; on the sides, the denomination 1–8 and the initials A–T; on the outer rim, a legend divided by the Wieniawa coat of arms:
MON•NOV•REG•POL•-POSNAN•FAC•1654;
