These cropped thumbnails do not show the full extent of the original images
A very nice air to air of one of the RAF's first 'high altitude bombers' the Boeing Fortress MkI. AN530 is seen in the markings of 90 Squadron as it was introduced into service in summer 1941. These early B-17s were quite problematic and were eventually replaced by more reliable bombers, with the surviving early Fortresses being transferred to Coastal Command.