10 Pennia with center hole

Finland's wartime copper issues from this period exist because of the severe metal shortages imposed by the Continuation War. Iron and other base metals were being consumed by the military at such a rate that the Bank of Finland was forced to make calculated compromises in coinage planning — copper survived as an option largely because existing dies and infrastructure were already in place. The center hole reduced material consumption without requiring retooling.

KM#33.1 distinguishes the civil war torch privy mark used by the Helsinki Mint during these years.