10 Pennia without center hole

Finland's wartime copper coinage was shaped directly by material shortages brought on by the Continuation War against the Soviet Union. The removal of the center hole — present on earlier issues — was a production decision driven by metal conservation, not design preference. Eliminating the hole recovered a small but meaningful amount of copper per coin across millions of strikes.

KM#33.2 is distinguished from its predecessor precisely by this absence, making die attribution straightforward for the series.