305th Bomb Group B-17 Flying Fortresses flying in formation. Passed for publication 30 Jun 1943. Printed caption on reverse: 'At A Fortress Station In Britain. From an American base in Britain the Flying Fortresses carry out operational activities which result in terrible blows against the German industrial war machine. This series of pictures shows scenes at a Flying Fortresses station where hige[sic] bombers take off for the raids or return from their missions to be serviced by the ground crews, ready for the next raid. Keystone Photo Shows:-' Printed caption also attached to reverse: 'Flying Fortresses in flight. U.S. Pool/F. Keystone (SS). 24, 25, 27.' Censor no: 272220. On reverse: US Army Press Censor ETO and US Army General Section Press & Censorship Bureau [Stamps].