40 Kruna overprint on 10 Dinara

When the Kingdom of Serbs, Croats and Slovenes absorbed the former Austro-Hungarian territories in 1919, it faced an immediate currency tangle: Croatian and Slovenian populations held crowns, Serbs held dinara, and a unified monetary system existed only on paper. The stopgap was this — Serbian 10 Dinara notes of the 1914 Narodna Banka issue overstamped with a 40 Kruna equivalency, fixing a conversion rate of 4 crowns to the dinar for territories transitioning out of Austro-Hungarian circulation.

Menci Clement Crnčić, the Croatian painter and graphic artist, had originally designed the underlying note before the war. The overprint was applied by A. Haase in Prague, a logical choice given the newly formed state's close ties with Czechoslovakia and its more developed printing infrastructure.