A nice, glossy piece.
Variety with asterisk and double circle as legend starting marks. An undescribed variety in CNG and Kopicki.
Obverse: in the pearl rim the coat of arms of Gdansk, in the outer rim the legend:
COIN:CIVIT:DANC;
Reverse: in the pearl rim a shield with a crowned eagle, in the outer rim legend:
KASIMIRVS:R:POLON;
Silver, diameter 20 mm, weight 1.28 g.