20 Francs - Montoire Loir & Cher

Montoire-sur-le-Loir housed a French officers' prisoner of war camp during the First World War, and like dozens of similar camps across France and Germany, it generated its own internal scrip when coin shortages made ordinary transactions impossible. These camp-issued notes were created by the prisoners themselves, authorized by the depot administration, and accepted only within the camp's economy — canteen purchases, small loans, settling debts between officers.

The 1917 date places this squarely in the worst period of the French coin famine, when local municipalities, chambers of commerce, and even POW camps were all simultaneously improvising emergency paper. Survival rate for camp scrip is low; most was redeemed, destroyed, or simply discarded at repatriation.