Typical sheet metal defects for this issue.
A variant of punctuation not described in Shlapinsky and Biełopolsky.
Obverse: crowned royal monogram in the pearl rim, in the rim legend:
POTIORQ3:METALLO:EST, in the outer rim legend: DAT:PRETIVM:SERVATA:SALVS;
Reverse: in the pearl rim a crowned shield with the coats of arms of the Crown, Grand Duchy and Snopes, in the field of the shield the denomination XXX GRO/-POL-, on the sides of the shield the initials A-T, in the outer rim the legend:
COIN:NOV:ARG:REG:POL-1664;
