10 Heller Helfenberg

Helfenberg is a small municipality in Upper Austria, and like hundreds of similar communities across the collapsing former Habsburg territories, it issued its own small-denomination emergency currency — Notgeld — when coin shortages made everyday transactions nearly impossible. The 10 Heller denomination was among the most common targets for local issue, since prewar Heller coins of that value had almost entirely vanished from circulation by 1920, hoarded or melted years earlier.

Austrian municipal Notgeld of this period was rarely redeemed in full. Many communes quietly let redemption deadlines pass, effectively converting the float into local revenue.