- 1General arrangements and outlines of diesel electric locomotives for UK & overseas railways (GEC/2/2/2/116)
1959-1973, file - 2General arrangements for Post Office (London) Railway and overseas railways (GEC/2/2/2/179)
1947-1975, file - 3Overseas railways general outlines of diesel electric locomotives (GEC/2/2/2/287)
1946-1957, file - 4Overseas railways mechanical details and wiring diagrams (GEC/2/2/2/295)
1951-1953, file - 5Metropolitan-Vickers Electrical Co Ltd tender specifications (GEC/3/10/19)
1953-1954, file - 6English Electric Company test specifications (GEC/3/11/5)
1955-1964, file - 7English Electric Company test specifications (GEC/3/11/12)
1956-1967, file - 8Metropolitan-Vickers Electrical Co Ltd & English Electric Company test specifications (GEC/3/11/17)
1949-c 1968, file - 9English Electric Company manuals (GEC/3/6/38)
1955, file - 10English Electric Company manuals (GEC/3/6/48)
1965-1968, file - 11South & Central America photographs (GEC/4/2/13)
1927-1967, file - 12South & Central America photographs (GEC/4/2/14)
1926-1963, file - 13English Electric Company Limited card indexes (GEC/4/5/3)
1953-1974, file