A nice fully legible circulating piece.
Obverse: crowned coat of arms of Gdansk in the pearl rim, in the outer rim a legend beginning with a rosette:
GROSSVS*CIVI*DANC3*1534;
Reverse: in the pearl rim a royal bust in armor and crown, to the right, in the outer rim a legend beginning with a rosette:
SIGIS*I*REX*PO*TO*TO*CI*PR;