10 Centimes

Carcassonne's aluminium emergency issues of 1917 belong to the vast wave of French municipal token coinage — monnaie de nécessité — that flooded local economies after the wartime disappearance of small bronze and copper coinage, metals diverted entirely to munitions production. Hundreds of French communes, chambers of commerce, and private entities struck their own subsidiary pieces during this period, and aluminium became the default material precisely because it had no meaningful strategic value to the military.

The El Mon. #20.2 reference distinguishes this from at least one other Carcassonne type in the same series.