French Colonies. (French Equatorial Afrique). 1940. Air Mail envelope addressed to Paris bearing A.E.F. Yvert 36, 5c green, Yvert 43, 40c carmine and Yvert 46, 55c violet tied by Moundou/ A.E.F. double ring '1st Dec 40' with circular 'Controle Postal/ Commission A/ Afrique Equatoriale Francaise', routed via Brazzaville/ Moyen Congo '30th Dec 40' with Controle' censor label tied by oval 'Ouvert Par/ L'Autorite Militaire/ WK 3' on face and reverse with hand-stamp instructional 'Retour a L'Envoyeur/ Relations Postales/ Interrompues' in violet on face and returned via Brazzaville '16th Dec 41' and Fort Archambault '5th Jan 42' and aarival back in Moundou '19th Jan 42' on reverse.