100 Zlotys Casimir III the Great

Casimir III — the only Polish king history awarded the epithet "Great" — died in 1370 after a hunting accident, leaving no legitimate male heir and ending the Piast dynasty after over four centuries. This issue falls within a long series of commemorative zlotys produced by the Polish People's Republic throughout the 1980s, a period when the NBP regularly used collector coinage as a modest hard-currency earner while the domestic economy deteriorated under martial law's aftermath and chronic shortages.

Copper-nickel issues of this type circulated nominally but were largely absorbed by the collector market almost immediately upon release.