Locomotive test report, London Midland & Scottish Railway Report No. 51

Locomotive test report, London Midland & Scottish Railway Report No. 51, locomotive class Royal Scot 4-6-0 No. 6158, performance and efficiency: to investigate the possibility of working accelerated London-Glasgow service, January 1935, Derby, 10 pages of text, 4 diagrams. (NRM Technical Archive reference TEST/LMS/20)