Nice Piece. A lot of preserved luster in the background.
A variant with legends beginning with crosses, with an error in the name of the city. A variant not described in Kopicki.
Obverse: in the pearl rim a shield with the city coat of arms, in the outer rim a legend:
KASIMIR○D○G○R○POLONI;
Reverse: in the pearl rim a shield with the coat of arms of Prussia, in the outer rim legend:
COIN:THORVNESIS;
Silver, diameter 19.5 mm, weight 1.21 g.