Sergeant Max Armstrong, an assistant crew chief of the 91st Bomb Group, cleans the ball turret of a B-17 Flying Fortress. Image stamped on reverse: 'Passed for publication 1 Feb 1943.' Printed caption on reverse: 'Some of the airmen from American who are taking part in the daily raids on enemy occupied territory and Germany, in their giant high altitude aircraft the "Flying Fortress" capable of carrying a 11,000 [a censor has corrected this figure beneath to say '10,000] pound bomb load. Photo shows: Sergt. Max Armstrong (Morgan Town, W. Virginia) cleaning ball turret on belly of Fortress. Fox Feb 1943.' Handwritten caption on reverse: '91BG Sgt Max Armstrong cleaning ball turret 1/2/43 photo date'