Casimir IV Jagiellon Half-Grosz

The most striking fact about the Casimir IV Jagiellon half-grosz is that it was minted from copper alloys recycled from older, worn coins, a practical measure to conserve resources during Poland's frequent wars.

This small coin, typically weighing under two grams, bore the Polish eagle on one side and the king's monogram on the other. Minters in Krakow or possibly other regional sites produced it, though exact locations remain debated among historians. We know Casimir used these coins to facilitate trade in a kingdom stretching from the Baltic to the Black Sea.

Records of its mintage are scarce; whatever survived likely burned in later conflicts. That said, examples in collections often show signs of heavy circulation, with edges smoothed from years in pockets and purses.

Finding one today can feel like spotting a rare bird in a forest of common currency.