IWM catalogue record
This contains information written on the back of the original print and some of it may be inaccurate.
A YB-40 B-17 Flying Fortress ( serial number 42-5741) of the 327th Bomb Squadron, 92nd Bomb Group. Printed caption on reverse of print: '#4397. YB-40 with extra 50 caliber guns. H.'
The 92nd Group's 327th Bomb Squadron was the only Eighth Air Force squadron to fly YB-40s in combat. YB-40s were B-17s modified to fly as a heavily armed escort for other bombers. They were flown on missions between May and June 1943. Between May 1943...
B-17 Flying Fortress
(YB-40) Delivered Tulsa 12/11/42; Biggs 17/3/43; Montbrook 31/3/43; Presque Is 30/4/43; Assigned 327BS/92BG [UX-H] Alconbury 7/5/43 CHICAGO; transferred 401BS/91BG [LL-Y] Bassingbourn 22/7/43; Returned to the USA 2/11/43; 3036 BU Yuma 4/5/44;...