- 1Records of English Electric Company Limited (EE)
1918-1968, fonds - 2Engineering Drawings of the Pullman Car Company (PUL)
1900 - 1975, fonds - 3Papers of Dr Michael Bonavia (BON)
1876 – 1994, fonds - 4Records of Wolverton Carriage and Wagon Works (WOLV)
1831-1993, fonds - 5Stratford Works Drawing Office Records (STRAT)
1847 - 1963, fonds - 6Derby Locomotive Works Engineering Archive (DERBYLOCO)
1874 - 1961, fonds - 7Trade Catalogues and Company Brochures (YA1996.3438)
1900-1995, fonds - 8Business records of Grimshaw Brothers Limited (YA2007.92)
1866-c1970, fonds - 9A Class 20 general arrangement and lubrication diagram (GEC/2/2/2/25)
1957-1965, file - 101000 H.P. locomotive mechanical components (GEC/2/2/2/34)
1957, file - 11Power and control circuits (GEC/2/2/2/35)
1927-1959, file - 12Mixed UK and overseas electrical equipment layouts (GEC/2/2/4/3)
1953-1966, file - 13Control apparatus and wiring diagrams (GEC/2/2/4/5)
1959-1961, file - 14Wiring diagrams and mechanical details (GEC/2/2/3/5)
1962-1979, file - 15British Transport Commission 1000hp locomotives mechanical and electrical details (GEC/2/2/2/107)
1959-1967, file
