5 Zloty Pattern

This iron pattern was struck in 1936 as part of Poland's search for a cheaper coinage alloy during a period of sustained fiscal austerity following the Great Depression. The Second Polish Republic's mint experimented with ferrous compositions for several denominations around this time, though none entered circulation — iron's susceptibility to corrosion made it impractical for everyday use, and the trials were quietly abandoned.

Surviving examples are institutional rarities, most traceable to the Warsaw Mint's own archives.