- 1Drawing Office records (GEC/2)
1874-1994, sub-fonds - 2Engineering records (GEC/3)
1846-1993, sub-fonds - 3Reports (GEC/1/1)
1920-1993, series - 4Drawing registers (GEC/2/1)
1905-1983, series - 5Drawings (GEC/2/2)
1874-1993, series - 6Pattern record registers (GEC/2/3)
1921-1994, series - 7Publications (GEC/4/1)
1904-1996, series - 8Photograph albums (GEC/4/3)
c 1900-1975, series - 9Spare parts catalogues (GEC/4/7)
1898-1975, series - 10Metropolitan-Vickers Electrical Co Ltd drawings (GEC/2/2/4)
1921-1989, sub-series - 11Class 82 locomotive bogie general arrangement (GEC/2/2/4/1)
1960, file - 12Motor and trailer bogie arrangements and details (GEC/2/2/4/2)
c 1950, file - 13Mixed UK and overseas electrical equipment layouts (GEC/2/2/4/3)
1953-1966, file - 14Control equipment pipe and conduit layouts (GEC/2/2/4/4)
1955-1959, file - 15Control apparatus and wiring diagrams (GEC/2/2/4/5)
1959-1961, file
