Ground personnel of the 305th Bomb Group conduct maintenance work on the engines of a B-17 Flying Fortress (serial number 41-24615) nicknamed "Target For Tonite". Image stamped on reverse: 'Not to be published.' [stamp], 'Ministry of information 20 Jun 1943.' [stamp] and '272225.' [Censor no.] Printed caption on reverse: 'AT A FORTRESS STATION IN BRITAIN. From an American Base in Britain the Flying Fortresses cary 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 huge bombers take off for the raids or return from missions to be serviced by the ground crews, ready for the next raid. Keystone photo shows: US Army Air Force Ground Crews servicing Flying Fortress. U.S. Pool/ F. KEYSTONE 19-22'