Nicely preserved piece in dark patina.
An undescribed punctuation variant in Iger.
Obverse: royal bust wearing crown, and armor, with tubular orifice seen from the side, to the right, in the rim legend:
-SIG-III-D-----G REX-PO-M-D L-;
Reverse: denomination III, below it the coats of arms Eagle - of the Crown of the Kingdom of Poland, Snop - of the Vasa dynasty and Pogo - of the Grand Duchy of Lithuania, below it the legend in two lines:
GROS-ARG-/TRIP-R-PO, below it the coat of arms - Levart of the Grand Crown Treasurer Jan Firlej between initials I-F, the sign of Rudiger's Rose between initials H-R and the sign of Jan Dietmar;