British East Africa. (Army Post Offices). 1942. Air Mail letter card envelope hand-stamped 'Christmas Greetings/ Postage Free' addressed to England cancelled by 'E.A./A.P.O. 66' double ring with framed 'Passed by Military Censor/ No 11/34' censor cachet in violet. Very rare Xmas Free Postage from the Army Post Office in Mombasa. Ex Goodman.