A beautiful mint piece.
Iger's undescribed punctuation variant.
Obverse: royal bust in crown, and armor, with tubular orifice seen from above, to the right, in the rim legend:
SIGI-3 D G-REX-PO-M-D-L-;
Reverse: denomination marking -III-, below it coats of arms of the Eagle of the Crown, the Sheaf of the Vasa dynasty, and the Pogo of the Grand Duchy of Lithuania, below it legend in three lines:
-GROS-ARG-/-TRIP-REG-/-POLONIAE, below it the coat of arms of the Levart in a shield, between the initials of the Great Crown Treasurer Jan Firlej - I-F; in the left field the abbreviation of the date -93-, in the right field the mint mark "mint hooks" of Theodor Busch;