1 Franc

The Banque du Congo Belge issued this brass franc during a period when the colony was generating extraordinary wealth for the Allied war effort — Congolese uranium, copper, and industrial diamonds were strategic materials, and the colonial monetary system had to function stably enough to keep that extraction machinery running. Belgium itself was under Nazi occupation from 1940, meaning colonial financial administration operated in a peculiar limbo, with the bank functioning largely independently from Brussels until liberation.

The brass composition reflects wartime and postwar metal economics rather than any colonial-specific policy.