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Description: | Regulations for train signalling on double lines of railway by the Absolute Block system and the Permissive Block system. Includes general instructions to signalmen. British Railways print of London Midland & Scottish Railway volume (2001-9401), 67 pages with some amendments, mint condition. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | railway operating document | Temporal: | Jan. 1947 | Source: | Science Museum | Creator: | British Railways | Identifier: | 2001-9402 | Go to resource |
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