A nicely preserved piece.
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 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 initials A-T, in the outer rim legend:
COIN-NOV-ARG-REG-POL-1665:;
