Petrol locomotive, No 4217, built by Simplex in 1925. Petrol locomotive, No 4217 Locomotives and Rolling Stock 1925
Sectioned "Swan" brand electric copper kettle, the first type of kettl e to be fitted with a totally immersed heating element and therby doubling the efficiency of electric kettles, provisional patent no. 33221/ 21, by Bulpitt and Sons Ltd., Birmingham, 1921-1922 Electric copper kettle, with immersed element, sectioned, c. 1921. Domestic Appliances 1921-1922
half-block working model, scale 1:24, of M.S. "Fullagar" (1920). Half-block working model of M. S. "Fullagar" Water Transport 1920
Spoon adapted for use with a mechanical substitute for the arms, United Kingdom, 1919 Orthopaedics 1919
Writing sample created using the Mechanical substitute for the arms, United Kingdom, 1919 Orthopaedics 1919
Model (scale 1:8) of front end of Thompson's Dish-ended Lancashire Boiler with corrugated flues. Two models, showing Thompson's Dish-ended Lancashire Boiler front sections Motive Power c. 1920
London & North Eastern Railway 4-6-2 Locomotive No 4472 "Flying Scotsman" Pictorial Collection (Railway) about 1924
Set of four models illustrating Van't Hoff's theory of the asymmetric carbon atom Experimental Chemistry 1920-1925
