- 1General arrangement drawing no 36719 (YA1966.24/3/21/C/17/6411)
1884, item - 2General arrangement drawing no 36748 (YA1966.24/3/21/C/17/6410)
1884, item - 3General arrangements and outlines of diesel electric locomotives for UK & overseas railways (GEC/2/2/2/116)
1959-1973, file - 4Mechanical parts for overseas railway locomotives (GEC/2/2/2/191)
1958-1960, file - 5General arrangements, general outlines and seating plans (GEC/2/2/2/205)
1936-1963, file - 6Overseas railways general outlines of Bo-Bo and Co-Co electric locomotives (GEC/2/2/2/235)
1949-1957, file - 7Overseas railways general arrangements of diesel electric locomotives (GEC/2/2/2/261)
1947-1956, file - 8Overseas railways general outlines of diesel electric locomotives (GEC/2/2/2/287)
1946-1957, file - 9Mechanical parts for overseas railways (GEC/2/2/2/330)
1948-1956, file - 10Mechanical parts for Central Argentine Railway, Buenos Aires & Pacific Railway and RFDN (Brazil) and mechanical details for the DH & DE prototype locomotives (GEC/2/2/2/347)
1953-1956, file - 11Mechanical 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 - 12Mechanical parts including brake arrangements for Buenos Aires & Pacific Railway, Central Argentine Railway and Indian Railways (GEC/2/2/5/63)
1948-1958, file - 13Overseas railways painting diagram and number plates for 1000hp electric locomotives (GEC/2/2/5/64)
1948-1957, file - 14Mechanical parts for Tasmanian Government Railways, RFDN, Brazil, Queensland Government Railways, Egyptian State Railways and DH & DE prototype locomotives (GEC/2/2/5/68)
1947-1952, file - 15Mechanical parts for the British Transport Commission DE & DH prototype locomotives and for overseas railways locomotives including Queensland Government Railway, Central Argentine Railway, Nigerian Railway, Buenos Aires & Pacific Railway, Great Western Railway and RFDN (Brazil) (GEC/2/2/5/70)
1952-1956, file