- 1Drawing Office records (GEC/2)
1874-1994, sub-fonds - 2Drawings (GEC/2/2)
1874-1993, series - 3Brush Electrical Traction Ltd drawings (GEC/2/2/26)
1956-1965, sub-series - 4Diagrams of connections for a 200 h.p. diesel electric shunting locomotive (GEC/2/2/26/1)
1958, file - 5Components for diesel electric locomotives type 1 and 2 (GEC/2/2/26/2)
1956-1965, file