Ground crew of the 78th Fighter Group test the engine of a P-47 Thunderbolt, August 1943. Not to be published 15 Aug 1943, Passed for publication 26 Aug 1943. Printed caption on reverse: 'At U.S. Thunderbolts Station. This series of pictures is a graphic story of the everyday activities of a Thunderbolt P-47 group which includes some of the finest fighter pilots - record holders of the U.S. Army Air Force in Britain. Keystone Photo Shows:- Engine check before take-off. U.S. Pool/F. Keystone. SG. 15.16.' On reverse: Not To Be Published, Keystone Press and US Army General Section Press & Censorship Bureau [Stamps].