A tail gunner of the 91st Bomb Group clears snow from the tail of his B-17 Flying Fortress (OR-W, serial number 44-8431). Printed caption on reverse of print: '56153 A.C.: Freezing fogs and wet snows have crystallized to cover this 8th Air Force base in England with a shroud of white. This has been the severest winter in England in almost a generation. Prior to take-off, this 91st Bombardment Group tail gunner clears the plexi-glass window in front of his gun sights.' Handwritten caption on reverse: 'Bassingbourn. 48431, OR-W. 91BG. US 8th AF Gunner prepares for take-off - a tail gunner of the 91st Bombardment Group, 8th USAF clears the plexi-glass window in front of his gun sights berfore taking off from a snow shrouded base 'in England'.