- 1Frame drawings of ISCOR locomotives (GEC/2/2/1/1)
1974-1988, file - 2Mechanical parts drawings for Brazil, South Africa Railways and British Rail Class 373 (GEC/2/2/1/3)
1953-1989, file - 3Bogie drawings for Brazil Steel Railway (GEC/2/2/1/4)
1976-1989, file - 4South African Railways electric loco layouts (GEC/2/2/1/6)
1974-1988, file - 5Ventilation details (GEC/2/2/1/18)
1983-1987, file - 6South African Railways & Harbours tender drawings of mechanical parts for 25kV ac locomotives (GEC/2/2/1/19)
1974-1984, file - 7Mounting brackets for auxillary equipment (GEC/2/2/1/21)
1979-1987, file - 8Body and cab layouts for ISCOR locomotives (GEC/2/2/1/23)
1978-1986, file - 9Underframe details (GEC/2/2/1/24)
1977-1985, file - 10 ISCOR mechanical parts details for Union Carriage & Wagon Co (GEC/2/2/1/25)
1975-1986, file - 11GEC Traction Archive (GEC)
1846-1996, fonds - 12Mechanical details for Brazil 50kV ac locomotives (GEC/2/2/1/30)
1984-1985, file - 13Class 58 & Class 38 equipment arrangements (GEC/2/2/1/44)
1984-1989, file - 14Class 91 wheel issues and modifications and other mechanical details (GEC/2/2/1/49)
1986, file - 15Underframe details (GEC/2/2/1/59)
1974-1988, file