Poland
Stephan Bathory 3 Groszy (Trojak) 1580-IR XF40 NGC, Olkusz mint, Fish mm, Jakob Rokossowski as Crown Treasurer, Kopicki-513 (R8), Iger-O.80.16a (R8). Extremely rare, with the lightly circulated highpoints accentuated by a deep-graphite tone.Ex. Künker (January 2011, Auction 180, Lot 593)
Estimate: 6000-8000 USD