- 1General outlines of electric locomotives (GEC/2/2/2/24)
1965-1968, file - 2A Class 20 general arrangement and lubrication diagram (GEC/2/2/2/25)
1957-1965, file - 3Electric locomotive general arrangement BoBo 5ft gauge proposal (GEC/2/2/2/27)
1961, file - 4Class 82 locomotive bogie general arrangement (GEC/2/2/4/1)
1960, file - 5Electro diesel locomotive piping and frame arrangements (GEC/2/2/2/37)
1962-1984, file - 6Roof and bogie electric conduit layout for motor coach d.c. (GEC/2/2/2/38)
1950-1951, file - 7Class 86/2, 87 and 87/2 bogie details (GEC/2/2/1/40)
1970-1985, file - 8Motor and trailer bogie arrangements and details (GEC/2/2/4/2)
c 1950, file - 9Concept Eurostar, BR Class 91, and Class 9E electric locomotive drawings (GEC/2/2/10/4)
1985-1987, file - 10Mixed UK and overseas electrical equipment layouts (GEC/2/2/4/3)
1953-1966, file - 11Control equipment pipe and conduit layouts (GEC/2/2/4/4)
1955-1959, file - 12Malayan Railways Co-Co mechanical details (GEC/2/2/2/115)
1955-1957, file - 13General arrangements and outlines of diesel electric locomotives for UK & overseas railways (GEC/2/2/2/116)
1959-1973, file - 14Malayan Railways Co-Co mechanical details (GEC/2/2/2/117)
1955, file - 15Wiring diagrams and schematics (GEC/2/2/2/118)
1952-1963, file