Rear gun sight of B 17 Flying Fortress Sally B at Duxford air museum
Size: 3888px × 2592px
Photo credit: © Nic Hamilton Photographic / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 17, 2010, airshow, b17, battle, bomber, britain, duxford, flying, fortress, gun, gun-sight, rear, sally, sight, usaf