Sunday Stamps | Dead Countries

Today's theme in Sunday Stamps is Country Names No Longer Exist, aka Dead Countries (although there is some discussion here).

I have chosen some stamps whose design I love, issued by African countries/postal authorities which no longer exist. I have not received these on envelopes, but inside envelopes.

Côte Française des Somalis / French Somaliland
1958

Republique du Dahomey / Republic of Dahomey
1963

Republique de Haute-Volta / Republic of Upper Volta
1963

État du/Inchi Ya Katanga / State of Katanga
1961

Afrique Equatoriale Française / French Equatorial Africa
1947

Transkei
1976