- 1Photograph album 1 (HL/4/1/1)
c 1928, item - 2Power and control circuits (GEC/2/2/2/35)
1927-1959, file - 3Lighting circuits and wiring diagrams (GEC/2/2/2/109)
1924-1962, file - 4Overseas railways electrical schematics and diagrams (GEC/2/2/2/147)
1922-1927, file - 5Overseas railways general outlines of Bo-Bo and Co-Co electric locomotives (GEC/2/2/2/235)
1949-1957, file - 6Great Indian Peninsula Railway and Central Railway, India mechanical parts (GEC/2/2/2/276)
1953-1956, file - 7RENFE and Great Indian Peninsula Railway pantograph arrangements, pipe clips, and brackets (GEC/2/2/5/32)
1949-1958, file - 8Lifting hooks, slings and shipping locomotives diagrams for overseas railways (GEC/2/2/5/51)
1928-1955, file - 9Mechanical parts for overseas railways (GEC/2/2/2/330)
1948-1956, file - 10Underframe pipe sketches and handbrake arrangements for Indian Government Railways and the Great Indian Peninsula Railway (GEC/2/2/2/336)
1954-1956, file - 11Mechanical parts for Great Indian Peninsula Railway and Central Railway, India (GEC/2/2/2/345)
1955-1956, file - 12Mechanical parts for Central Argentine Railway, Great Indian Peninsula Railway and Queensland Government Railways and mechanical details for the DH & DE prototype locomotives (GEC/2/2/2/348)
1951-1958, file - 13Conduit clips and carriers, arrangements of electric lighting conduits, cab light and pattress for overseas railways (GEC/2/2/5/75)
1951-1958, file - 14Mechanical parts for Egyptian State Railways, RENFE and Great Indian Peninsula Railway (GEC/2/2/5/78)
1946-1954, file - 15Ventilation details and battery boxes for overseas railways (GEC/2/2/5/82)
1949-1956, file
