Ball-point pen, Fisher Space Pen with tungsten carbide tip, hermetically sealed and pressurised ink reservoir, patented 1965 (model -#3,285,228: Anti-Gravity Pen) with accompanying explanatory leaflet, 1968-1978. Fisher anti gravity Space Pen, with explanatory leaflet and box 1968-1978
Tunnelling pick, steel with tungsten carbide inserts, for Channel Tunnel, French, c. 1990. tunnelling pick 1990
Electric lamp in a wooden case, made by S. E. Flicroft, London, 1945. Wooden case containing a large light bulb mounted on a wooden base 1945
Components of ion source for Hermes electromagnetic separator, unsigned, British, 1976-1982 Components of ion source for Hermes electromagnetic separator 1976-1982