10 Heller

Aich is a small village in Upper Austria, and like hundreds of similarly tiny communities, it resorted to printing its own emergency scrip during the acute coin shortage that followed Austria's defeat in the First World War. These Notgeld issues were a municipal stopgap — locally authorized, locally circulated, and redeemable only within the issuing community. The 1920 date places this firmly in the second wave of Austrian Notgeld, by which point the practice had become almost systematic across rural Upper Austria.

Redemption periods were short and strictly enforced. Notes that weren't presented in time became worthless, which is precisely why so many survived uncirculated in collector hands — even at the time, some residents held them back deliberately.