10 Francs Doany leprosarium

Doany is a village in northern Madagascar, and the leprosarium there operated under French colonial municipal authority. Institutions like this one issued their own scrip — not as a monetary experiment, but as a practical containment measure. Residents were prohibited from using standard currency that might leave the colony and carry infection; internal tokens kept commerce strictly within the settlement's boundaries. The practice was widespread across colonial-era leprosy colonies in Africa and Asia throughout the first half of the twentieth century.

The issuing window of nearly three decades reflects administrative inertia more than continuous printing runs — a single print order often served the full lifespan of a series.