- 1General outlines of electric locomotives (GEC/2/2/2/24)
1965-1968, file - 2Control apparatus and wiring diagrams (GEC/2/2/4/5)
1959-1961, file - 3General arrangements and outlines of diesel electric locomotives for UK & overseas railways (GEC/2/2/2/116)
1959-1973, file - 4General arrangements for a BR Class 28 and mechanical details (GEC/2/2/4/8)
1959-1967, file - 5Southern Railway stock wiring diagrams (GEC/2/2/2/304)
1924-1970, file - 6Equipment case assemblies for Danish State Railways (GEC/2/2/2/650)
1946-1974, file - 7Co Co Shuttle Locomotive, 206a trolley bus motor, South African Railways and Harbours Class 10E locomotives, Light Traction Specifications, Boeing Vertol Light Rail Vehicle and High Speed Circuit Breakers technical files (GEC/1/3/19)
1962-1989, file - 8Battery Electric Passenger Cars, Overseas vists to USA & Canada and Maglev research files (GEC/1/3/21)
1966-1984, file - 9English Electric Traction Limited, British Thomson-Houston Co Ltd, English Electric-AEI Traction Limited, AEI Semiconductors brochures and publications and also includes English Electric Traction magazine (GEC/4/1/4)
1953-1980, file - 10Associated Electrical Industries (AEI), AEI Traction Limited and AEI-General Signal Ltd brochures and publications (GEC/4/1/5)
1959-1960, file - 11English Electric-AEI Traction Limited tender specifications (GEC/3/10/17)
1963-1969, file - 12Associated Electrical Industries tender specifications (GEC/3/10/32)
1953-1968, file - 13English Electric-AEI Traction Limited spare parts catalogues (GEC/4/7/10)
1957-c 1969, file - 14Associated Electrical Industries manuals (GEC/3/6/58)
1949, file - 15Associated Electrical Industries manuals (GEC/3/6/59)
c 1960, file