Lot 292
A collection of Barnes Wallis' lecture slides mainly about Seaplanes and other Aircraft in fitted numbered wooden boxes (90 photos, in 2 boxes) Box N, Graphs, 24 slides Batch 1 (slides 1-13) - Aeronautical data for aircraft and pilot (slide 1 cracked). Batch 2 (slides 16-26) - Properties of materials under stress or temperature. Loose- Many unmounted photos of seaplanes and aircraft 1920's to late 1930's. Small Box S, Misc. Aircraft, 46 slides Starting at labelled end: 5 photos of Supermarine S.6 sea plane which set speed record in 1929, 4 photos of civil single-seater aircraft, 7 photos of a WW2 military 2-seater, 4 photos of Hurricanes, 26 photos of aircraft structure  £100-200