Description | Item 1: Pictures of Exhauster House (2 items), 20th cent Item 2: ?Copy of 1814 picture of Bryan Donkin machinery. See Engineering Drawings series, no B59 for original, 20th Cent Item 3: ?Indicated horse power of compound "sulzer" engines, 1900 Item 4: Letter of 1939 from Gas Light and Coke Company to Mr Stone re air moisture, with graphs (photocopies), 20th cent Item 5: ?Pages from Engineering newspaper, 1918 Item 6: ?Machinery blueprints, 20th cent Item 7: ?Illustrations to fig. 701, 20th cent Item 8: ?Work log 1-4, 7 and 8: 1,2 and 4 labelled "crepelle", 3 labelled "fans", 1968-1972 Item 9: ?Machine balancing book, 20th cent Item 10: Lists of Bicera compressors and ?Holmes-Conn. Boosters, 20th cent Item 11: ?Work log HE, RC and B, c1950s Item 12: ?Work log RT, RP and RH, c1950s |