Lot 293
A collection of Barnes Wallis' lecture slides mainly about Airships and Aircraft in fitted numbered wooden boxes (106 slides, in 3 boxes) Box H, mainly aircraft, 36 slides Slides 1-6 Geodetic structure, Aircraft wheel, viaduct architecture, miscellaneous Slides 8-10 Photos of cracks in materials Slides 12-17 Photos of aircraft, cutaways of Wellington to show structure Slides 19-21 Photos, seagull in flight, ballistics, jet engine Slides 35-43 Photos of prototype jet-propelled bomb? Slides 45-50 Photos of model aircraft and construction of stratospheric chamber Small Box O, 22 slides (5 slides cracked) Starting at piece of paper which says "Start Here" 7 world or regional maps, 1 table about trade, 3 photos of R100 (2 interior, 1 exterior; damaged), 2 tables and 6 photos related to flight testing (normal and hypersonic), 3 diagrams of swing-wing Swallow Box V, Airships, miscellaneous, 48 slides (1 slide broken) Slide 1 1919 drawing of Airship for England New Zealand travel Slide 2 Photo of mystery item (1920s?) Slides 4-30 Photos of manufacture of airship R100 (one drawing) Slides 31-36 Photos of R100 in flight Slides 38-39 Drawings of 1919 airship Slides 40-42 b/w copies of paintings of 1919 in flight and mooring to ship Slides 43-45 Photos of cabins slung below airship (1920?) Slides 46-50 Miscellaneous  £100-150