
Locomotive test report, London Midland & Scottish Railway Report No. 38
Locomotive test report, London Midland & Scottish Railway Report No. 38, locomotive class Royal Scot 4-6-0 No. 6158, performance and efficiency: deterioration of performance and efficiency while in service, June 1932, Derby, 16 pages of text, 5 diagrams, 2 tables. (NRM Technical Archive reference TEST/LMS/20)