Two B-17Gs of the 91st BG, both most likely assigned to the 401st Bomb Squadron. The foreground ship's radio call number is illegible, but her call letters are LL-A.
IWM catalogue record
This contains information written on the back of the original print and some of it may be inaccurate.
B-17 Flying Fortresses of the 91st Bomb Group fly in formation.
The 91st Bombardment Group (Heavy) was activated at Harding Field, Louisiana on 15-April-1942 and went to MacDill Field, Florida for the first phase of training from 16-May-1942 to 25-June-1942. The Group was then assigned to 2nd Air Force at Walla...