50 Francs

The Banque du Congo Belge turned to the American Bank Note Company during the Second World War after its usual European printing arrangements became untenable — Belgium was under German occupation, and routing sensitive currency production through occupied territory was not an option. ABNC filled the gap for several colonial issuers during this period, and the Congo series was among the longer-running contracts, with this type remaining in production well into the early 1950s.

The extended date range of nearly a decade for a single type reflects postwar inertia in colonial monetary administration rather than any planned continuity.