A nice, glossy piece.
A variety with a circle and rosette as legend starting marks. An undescribed variant of the legend in Kopicki and CNG.
Obverse: in the pearl rim the coat of arms of Gdansk, in the outer rim the legend:
MOIIET○CIVIT○DAI;
Reverse: in the pearl rim a shield with a crowned eagle, in the outer rim legend:
KASIMIRVS○REX○D;
Silver, diameter 19.5 mm, weight 1.39 g.