10 Centimes

Saint-Germain-en-Laye issued its own emergency token coinage during World War I as the national government's metal requisitions stripped copper and nickel from civilian circulation entirely. Thousands of French municipalities did the same between 1914 and 1922, producing a sprawling category of necessity money known as monnaies de nécessité. Aluminium was one of the few unregulated metals available to local issuers by 1917, which accounts for the material here rather than any deliberate design choice.