- 1Electrical parts drawings for industrial overseas locomotives (GEC/2/2/1/9)
1975-1984, file - 2Brake arrangements (GEC/2/2/2/129)
1962-1973, file - 3Locomotive and bogie, conduit and equipment layouts (GEC/2/2/2/130)
1951-1958, file - 4Mechanical and electrical parts (GEC/2/2/2/212)
1952- 1960, file - 5Brake details for Egyptian State Railways, Tasmanian Government Railways (GEC/2/2/5/77)
1921-1952, file - 6Mechanical parts for overseas railways (GEC/2/2/2/362)
1947-1954, file - 7RENFE mechanical parts (GEC/2/2/2/363)
1951-1967, file - 8RENFE Westinghouse brake part arrangements (GEC/2/2/5/91)
1952-1958, file - 9Lighting conduit and fitting arrangements and hand brake & Westinghouse equipment arrangement for diesel electric locomotives (GEC/2/2/2/374)
1940-1954, file - 10Mechanical parts for Tasmanian Government Railways and Queensland Government Railways (GEC/2/2/5/96)
1949-1952, file - 11Arc boxes and interlock contact blocks (GEC/2/2/2/489)
1933-1984, file - 12The GEC monogram and schematic diagrams (GEC/2/2/9/32)
1933-1963, file - 13Mechanical arrangements and details from the American Locomotive Company (GEC/2/2/35/1)
1954-1957, file - 14Northern Ireland Railway Co Ltd, South African Railways & Harbours 10E1 locomotives and Sierra Leone Development Company Limited Voith RS18Z Conversion tender files (GEC/1/3/26)
1968-1984, file - 15English Electric Company test specifications (GEC/3/11/15)
1948-1969, file