French Colonies. (Senegal - A.E.F. - Dahomey - Tchad - Nigeria). 1942. Air Mail envelope addressed to Lai, Tchad bearing Senegal Yvert 151, 2f violet (2) tied by Rufisque/ Senegal double ring '21st Aout 42' with circular 'Regiment de Tirailleurs au Senegal/ Le Vagumestre' military cachet on face in violet with 'Controle Postal' censor tape tied by oval 'Ouvert/ Par/ L' Autorite Militaire' with hand-struck circular 'A/ 3', routed via Dahomey with Cotonou/ Dahomey '26th Sept' and Lagos '24th Nov 42' with 'Opened by Examiner/ P.C. 90' censor tape tied by boxed 'Crown/ Passed PP/ 16' Nigeria censor on face and reverse with circular 'Controle Postal/ Commission F/ Afrique Equatoriale Francaise' in violet on reverse with Moundou/ A.E.F. transit '20th Jan 43' on reverse in blue. Superb item of Trans-Africa Air Mail with censors from 6 different censors and passing via 5 different countries in internal Africa to Tchad a scarce destination.