Regulations booklet, London & Blackwall Railway, General Regulations for the Inspectors, Conductors, Switchmen, and Porters, Label adhered to front cover; "These Regulations bear no date; but they were issued between 1840 and 1848 (during which period the Blackwall line was worked by a wire rope) and reprinted at the G.E.R. Printing Works, Stratford, 1899." London & Blackwall Railway regulations 1899