Poland's postwar monetary reform of 1949 replaced the provisional currency that had circulated since liberation with a new socialist coinage, and the Warsaw Mint produced a series of trial strikes in aluminium to test both dies and production tolerances before committing to final compositions. The 1 Złoty ultimately entered circulation in aluminium, but these trial pieces predate that decision and were never intended to leave the mint.
KM# Pr10 is one of several denomination trials from the same reform program, most surviving in mint or institutional collections. The number of confirmed examples in private hands remains small.
Poland's postwar monetary reform of 1949 replaced the provisional currency that had circulated since liberation with a new socialist coinage, and the Warsaw Mint produced a series of trial strikes in aluminium to test both dies and production tolerances before committing to final compositions. The 1 Złoty ultimately entered circulation in aluminium, but these trial pieces predate that decision and were never intended to leave the mint.
KM# Pr10 is one of several denomination trials from the same reform program, most surviving in mint or institutional collections. The number of confirmed examples in private hands remains small.