10 Zlotys Gdynia Seaport, Trial Strike filled land

Poland's 1972 commemorative program for the port of Gdynia coincided with a period of acute political sensitivity around that city — just two years after the December 1970 shipyard massacres in which security forces killed dozens of striking workers along the Baltic coast. Gdynia was at the center of those events. Whether that proximity influenced any production decisions at Mennica Polska is unrecorded, but the trial strike program for this issue was notably extensive, producing multiple die and fill variants now catalogued separately by Fischer and Parchimowicz.

This specific piece — the filled land variety — differs from the standard trial in how the geographic relief of the land mass was treated during die preparation, making it a distinct collectible rather than a mere proof precursor.