A beautiful circular piece. A coin definitely rarer in this condition.
Variety with rosette and circle as characters starting legends.
Obverse: in the pearl rim the coat of arms of Gdansk, in the outer rim the legend:
MONET○CIVIT○DAI;
Reverse: in the pearl rim a shield with a crowned eagle, in the outer rim legend:
KASIMIRVS○REX○D;
Silver, diameter 19 mm, weight 1.23 g.