20th CENTURY FOREIGN MAIL; Small group with 1937 censored env. to Belgium franked 8d + 50l pair, 1939 airmail env. to Nigeria franked 3d pair, 1d pair + 50l pair, 1939 airmail env. to Berlin franked 2d (4), 5d, 1d & 50l pair and other related examples. (11 covers + 2 fronts) Cross Reference: AIR MAIL COVERS, MILITARY - CENSORED MAIL, MILITARY - WWII, INCOMING OVERSEAS MAIL (Image)