10 Zlotys Tadeusz Kościuszko head, Trial Strike

The 1958 Polish pattern series was produced during a period when the National Bank was quietly testing designs for a major circulation coinage reform that would not fully materialize until the early 1960s. This trial strike of the Kościuszko 10 Złotych — catalogued under both Fischer and Parchimowicz — represents one of several competing compositional and design proposals evaluated that year, most of which were rejected before reaching the public.

Kościuszko remained an ideologically safe choice for the communist-era Polish state: a military hero whose biography could be framed around anti-tsarist resistance rather than western democratic idealism, despite the latter being the more accurate characterization of his political philosophy.