B.O.A.C. Argonaut Speedbird — airplane in flight — publisher not visible

Description

B.O.A.C. Argonaut Speedbird airplane in flight above the clouds, with the inscription 'B.O.A.C.' on the fuselage and the name of the aircraft at the bottom. Reverse: printed text describing the airplane, British stamps of 30¢ and 5¢ (Uganda, Kenya, Tanganyika), postmark 'TANGANYIKA', handwritten address to 'MARSILLE France', and a blue 'BY AIR MAIL' airmail stamp.