- Francis Pettit Smith, curator of the Patent Office Museum: corresp rel to possibility of a photographic process having been used at the Soho Works of Boulton and Watt (MS 2117)
- British Vacuum Cleaner Co Ltd: photograph album, incl photos of early appliances and factory (MS 699)
- Album of photographs (c100) of airships, their hangars, construction and use, and parachute preparation and use (MS 701)
- Lithographic design drawings (22) of the Neale Aerial Warship 1917-18 (MSP 69)
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Science Museum Library