- 1Drawing Office records (GEC/2)
1874-1994, sub-fonds - 2Engineering records (GEC/3)
1846-1993, sub-fonds - 3Drawings (GEC/2/2)
1874-1993, series - 4Order enquiry files (GEC/3/5)
1956-1972, series - 5Westinghouse Brake & Signal Co Ltd drawings (GEC/2/2/30)
1874-1952, sub-series - 6Air brake parts (GEC/2/2/30/1)
c 1952, file - 7Mechanical parts for Class B goods engines; Class A, C and D tank engine; passenger engine and tender; and a Somerset & Dorset Joint Line name plate and painting diagram (GEC/2/2/30/2)
1874-1924, file - 8Westinghouse Brake and Signal Co, British Steel Corporation Stanton & Staveley coke car, Stewarts & Lloyds, Corby and Sierra Leone Development Company Ltd order enquiry files (GEC/3/5/1)
1956-1971, file - 9Westinghouse Brake & Signal Co Ltd spare parts catalogues and lists (GEC/4/7/29)
1951-1957, file - 10Westinghouse Brake & Signal Co Ltd and English Electric Company spare parts catalogues and lists (GEC/4/7/32)
1959-1960, file - 11Westinghouse Brake & Signal Co Ltd spare parts catalogues and lists (GEC/4/7/37)
1949-1963, file