- 1R & W Hawthorn Leslie & Co Archive (HL)
1846-1963, fonds - 2Gear arrangements, saddle tank steam locomotives, 2800 bhp diesel electric locomotive general outline, and general arrangements (GEC/2/2/7/9)
1929-1950, file - 3Mechanical parts for Class B goods engines; Class A, C and D tank engine; passenger engine and tender; and a Somerset & Dorset Joint Line name plate and painting diagram (GEC/2/2/30/2)
1874-1924, file - 4Smokebox tubeplate, side bearing arrangement (power bogie) and plate arrangements for steam locomotives (GEC/2/2/5/86)
1936-1938, file - 5British Transport Commission, Western Region, Swindon, "Castle" Class locomotives - oil burning conversion arrangements (GEC/2/2/7/14)
1957-1958, file - 6Great Western of Brazil Railway mechanical parts for 2-6-0 type "mogul" engines and tenders (GEC/2/2/7/15)
1910-1937, file - 7Great Western of Brazil Railway mechanical parts for 2-6-0 type "mogul" engines and tenders (GEC/2/2/7/16)
1910-1937, file