Camerouns. (Free French). 1942. Registered Air Mail envelope headed 'Banque de L'Afrique Occidentale/ siege de Douala' addressed to London bearing Great Britain SG 489, 2 1/2d pale blue and SG 490, 3d pale violet tied by St James S.W. 5 date stamp '18th Nov' with matching registered label and circular 'Le Directeur du Cabinet Civil/ Camerouns Francaise/ Libre' on face and endorsed 'Vu pour Control/ Douala le 23 Octobre 1942/ Le Directaur du Cabinet Civil.' . Scarce item from the Camerouns to 'de Gaulle's headquarters at Carlton Gardens, London' . Sent the double Atlantic routed. Ex Maddocks and illustrated in his book.