Two Countermarks minted on a Tatar coin, ca. 1424-1430, type Huletski-Liszewski 5 GA.
The first was struck the countermark in the form of the Columns of Gediminas, and only then was the small letter g struck, minted by Kaffe, a Black Sea colony of the Italian city of Genoa.
Diameter 16 mm, weight 0.79 g