- 1General outlines of diesel electric locomotives (GEC/2/2/2/241)
1958-1962, file - 2British Railways types 1-5 painting specification, diagrams, number plates, maximum moving dimensions, also chain curve, running gauges and mechanical details for Tientsin Pukow Railway, Great Western Brazil Railway and Lunghai Railway (GEC/2/2/5/69)
1935-1958, file