Volume entitled: "Early Days of the Electrical Industry, and Other Reminiscences of Alexander P. Trotter"
Volume entitled: "Hipparchus of Bithynia. Of the Phenomena of Aratus and Eudoxus. The 3rd Exposition out of Book 3 in 3 Expositions"
Collection of notebooks for traditional 'A' level physics course at Queen Elizabeth's Grammar School, Gainsborough
Archive of the hydrological research committee of the Department of Scientific and Industrial Research and the Natural Environment Research Council
Kompleks kompensator, system Gall. Fabrikat H. Tinsley & Co., London. Betjeningsforskrift og beskrivelse
Drawing of broad wheeled Sussex waggon as used in the counties Sussex & Kent, Southern England circa 1700-1930
Typescript entitled: "The life and work of Alexander Melville and his invention in patenting the Rigmel cloth shrinking m/c and further development in textile shrinking"