- 1Mechanical parts for industrial locomotives (GEC/2/2/2/141)
1963-1972, file - 2Industrial locomotives gauge and curve drawings (GEC/2/2/2/142)
1968-1974, file - 3Mechanical parts (GEC/2/2/19/1)
c 1956, file - 4Roan Antelope Copper Mines Ltd electric shunting locomotives mechanical parts (GEC/2/2/19/2)
c 1950, file - 5Southern Railway allocation schedule and electrical equipment layouts for multiple unit stock (GEC/2/2/2/640)
1936-1938, file - 6Motor coach arrangements for South Indian Railway (GEC/2/2/2/641)
1932-1962, file - 7General arrangements of double ended battery locomotive type EM2-B1 and arrangement of electrical equipment for electric trolley locomotives (GEC/2/2/2/642)
1944-1957, file - 8Equipment cubicles and details for British Rail Southern Region high density stock (STEP) (GEC/2/2/2/643)
1968-1977, file - 9Master controllers and details (GEC/2/2/2/644)
1938-1944, file - 10Equipment cases and layouts (GEC/2/2/2/645)
1960-1981, file - 11Electrical connection boxes (GEC/2/2/2/646)
1935-1949, file - 12Wiring diagrams and schematics for Class 84 locomotive units and layouts for Liverpool Street - Clacton Express M.U. trains (GEC/2/2/9/12)
1961-1962, file - 13GEC Witton electrical equipment layouts and schematics (GEC/2/2/9/13)
1952-1963, file - 14GEC Witton electrical equipment layouts and schematics including for Ventura Engine and Portugal Railways (GEC/2/2/9/14)
1959-1970, file - 15GEC Witton electrical equipment layouts and schematics (GEC/2/2/9/15)
1961-1964, file
