The French Congo (French: Congo franšais) or Middle Congo (French: Moyen-Congo) was a French colony which at one time comprised the present-day area of the Republic of the Congo and parts of Gabon, and the Central African Republic. In 1910, it was made part of the larger French Equatorial Africa.
Modern Republic of the Congo is considered French Congo's successor state, having virtually identical borders, and having inherited
rights to sovereignty and independence from France through the dissolution of French Equatorial Africa in the late 1950s.
Most Postmarks I see is of BRAZZAVILLE
This one LOANGO
Coastal settlement, capital of Kouilou region.
Sc#64 Paris Colonial Exposition 1931