Nicely preserved, well stamped piece.
Variety with PRVS ending the legend.
Obverse: in the pearl rim the city coat of arms, in the outer rim the legend beginning with a star:
GROSSVS-CIVIT○ELBING-1539;
Reverse: in the pearl rim the coat of arms of Royal Prussia, in the outer rim a legend begun with a trifoliate:
SIGIS○I○REX○POLO○DO○TO○PRVS;