100 Marks Without nominal, Trial Strike Sn

Poland's postwar monetary system was in freefall by 1922 — the Polish mark, introduced in 1917 under German occupation, was already losing ground to inflation that would become catastrophic within months. The Mennica Państwowa in Warsaw conducted extensive trial strikes in multiple metals during this period as authorities debated which alloys were practical for a collapsing currency. Tin was among the candidates tested and rejected.

The absence of a denominal inscription on this piece — unusual even for a pattern — likely reflects the futility of fixing a face value on anything during a period when purchasing power shifted week to week.