- 1Conduit equipment layouts (GEC/2/2/2/50)
1947-1961, file - 2Electric locomotive general outlines for overseas railways (GEC/2/2/10/5)
1981-1988, file - 3Danish State Railways schematic diagrams (GEC/2/2/2/177)
1931-1936, file - 4Overseas railways electrical schematics (GEC/2/2/2/178)
1933-1971, file - 5New South Wales Government Railways, Danish State Railways and British Rail Southern Region pantograph mechanical layout (GEC/2/2/2/453)
1955-1976, file - 6Electrical and mechanical equipment layouts for Class 86 (AL6) locomotives, Rhodesian Selection Trust and Danish State Railway (GEC/2/2/2/461)
1970-1971, file - 7Equipment layouts and general arrangements (GEC/2/2/2/542)
1944-1960, file - 8Plugs and sockets for Danish State Railways and British Railways Board (GEC/2/2/2/602)
1930-1987, file - 9Circuit breakers, cable diagrams, proposed control cubicle for shunting locomotive, resistance frames including for Ghana Railways, South African Railways and Danish State Railways and contactor sketches for the Hovertrain (GEC/2/2/2/629)
1966-1969, file - 10Control equipment panels and details for Malayan Railways, British Rail Southern Region (STEP) and Eastern Region, Danish State Railways, Pakistan Eastern Railway, Northern Ireland Railways, Portguese Railways, British Railways Board type 4 locomotive (GEC/2/2/2/630)
1965-1971, file - 11Underframe equipment cases and details for Danish State Railways and British Rail Southern Region, Eastern Region and London Midland Region ac coaches (GEC/2/2/2/635)
1950-1964, file - 12Vacuum interrupters, resistors, isolating valves, fuse panels for Nigerian Railway, Northern Ireland Railway, East African Railways & Harbours, Danish State Railways and British Rail Southern Region (GEC/2/2/2/638)
1969-1970, file - 13Equipment case assemblies for Danish State Railways (GEC/2/2/2/650)
1946-1974, file - 14Metropolitan-Vickers Electrical Co Ltd tender specifications (GEC/3/10/38)
1953, file - 15Metropolitan-Vickers Electrical Co Ltd tender specifications (GEC/3/10/39)
1923-1924, file