- 1Archive of Robert Stephenson & Co Ltd (ROB)
1823 – c 1960, fonds - 2GEC Witton drawing register (GEC/2/1/1)
c 1960, item - 3Battery mining locomotive drawings (GEC/2/2/2/1)
1956-1964, file - 4Bogie drawings (GEC/2/2/2/2)
1956-1964, file - 5Frame drawings of ISCOR locomotives (GEC/2/2/1/1)
1974-1988, file - 6Tender bogie drawings (GEC/2/2/5/1)
1949-1955, file - 7Axle boxes and details drawings (GEC/2/2/2/3)
1961-1973, file - 8Parts detail drawings for WG Bagnall Ltd (GEC/2/2/5/2)
1955-1958, file - 9Mechanical parts drawings for South African locomotives (GEC/2/2/1/2)
1981, file - 10Mechanical parts drawings for Brazil, South Africa Railways and British Rail Class 373 (GEC/2/2/1/3)
1953-1989, file - 11Bogie drawings for Brazil Steel Railway (GEC/2/2/1/4)
1976-1989, file - 12Wheel and axle drawings (GEC/2/2/1/5)
1956-1986, file - 13Electrical parts of cables, conduits and clips drawings (GEC/2/2/2/4)
1959-1971, file - 14South African Railways electric loco layouts (GEC/2/2/1/6)
1974-1988, file - 15Mechanical parts and arrangements for Malaya, East Pakistan and Northern Ireland Railways (GEC/2/2/2/5)
1969-1970, file