Camerouns. (Canada). 1942. Registered Air Mail envelope addressed to Douala, French Cameroun bearing Canada SG 388, $1 blue tied by Ottawa date stamp 'Jul 1st 42' framed hand-struck 'R/ Ottawa. On. ' endorsed 'Via Miami & West Africa' routed via Montreal and Miami '6th July' with Nigeria transit '18/7' and hand-stamp 'Censor' on face, circular 'A/1 and triangular cachet with circular 'Control Postal/ Commission A/ Territoire du Cameroun' on face and returned to New York bearing French Cameroun Yvert 252, 30c orange and Air Mail Yvert 16, 25f blue tied by Douala/ Cameroun Yvert 252, 30c orange and Air Mail Yvert 16, 25f blue tied by Douala/ Cameroun dispatch '30th Juin 43' with Douala/ Chargements on reverse. New York and Miami back-stamps.