50 Mark Helmstedt; PoW Camp

Helmstedt was one of several German officer prisoner-of-war camps that issued its own internal scrip during the First World War, a practical necessity when regular Reichsmark currency was withdrawn from camp circulation to prevent escape funding and black market leakage to the outside. Officer camps operated under different conditions than enlisted camps — the Hague Conventions entitled officer prisoners to pay, which the detaining power was obligated to provide, and camp scrip became the controlled mechanism for doing so.

The Campbell reference places this squarely in the broader category of German PoW Lagergeld, but Helmstedt issues are among the less frequently encountered in the collector market. Whether that reflects low original print runs or high attrition after repatriation in 1918 is not easily established.