Folder of technical documents including blueprints of LMS [London Midland & Scottish] Railway stoker arrangements, Central Argentine Railway class 4-6-2 general arrangements, a printed illustration and particulars of 4-8-4 engines and an annotated list of spares by Vulcan Foundry, a printed illustration of George E. Spengler locomotive 1939. A bundle titled 'Loco. Miscellaneous' with hand-written calculations on different locomotives (25 pages), prices, including 4-8-4, 4-6-4 and 2-5-0 classes on Ministry of Railways National Government of China stationery paper, a summary of funds available of the Indemnity Fund Board of Trustees dated 30th November 1934; a copy of Railway Gazette illustration of Chinese 4-8-4 engines 1st November 1935, typed and hand-written notes on technical details in locomotive design, a hand-drawn graph on Tietsin-Pukow Railway revenues and expenses in 1937, a document titled 'Random notes on the Chinese 4-8-4's' (most likely written after the Japanese occupation 1937, 3 pages).