Camerouns. (French Cameroun). 1942. stamp-less envelope endorsed 'F.M.' (Francaise Militaire' addressed to Douala cancelled by Kribi date stamp '15th Jan 42' with double ring 'Place de Kribi/Le Commission B/ Territiore du Camerouns' in violet, scarce censor applied in Yaounde and the only type seem by Maddocks and illustrated in his book. Very nice item with military unit cachet.