10 Heller Greifenstein

Greifenstein an der Donau is a village of a few hundred souls perched above the Danube northwest of Klosterneuburg — hardly the kind of place one expects to find an issuing authority. But in 1920, Austria's postwar currency chaos was acute enough that hundreds of municipalities printed their own small-denomination emergency notes, Notgeld, to compensate for a catastrophic shortage of coin. The central government had neither the metal nor the logistics to supply the countryside.

The official seal was the only security feature the village could realistically apply, and it would have been enough — nobody was counterfeiting 10 Heller from Greifenstein.