56001 to 56060. Dated Jan 1974. Rare thing, in very good, used condition.
1971 Field Manual of Interchange Rules by the Association of American Railroads
Poor's Manual of Railroads - 22 Volumes 1874-1903 DVD - C661
London Transport Board Manual of Inspection PD18(2) October 1966
BRITISH RAILWAYS SOUTHERN REGION. MANUAL OF AGREED PATHWAYS SPECIAL TRAINS. 1974
Michigan Manual Of Uniform Traffic Control Devices Vintage 1981 Edition Part VI
