| Archive Reference / Library Class No. | LS/385.316 |
| Title | London Midland and Scottish Railway: regulations for train signalling on double lines of railway by the absolute block system; by the permissive block system; also general instructions to signalmen, January 26th, 1947, until further notice. |
| Date | 1947 |
| Publication Date | 1947 |
| Author | London, Midland and Scottish Railway Company |
| Repository | Derbyshire Record Office |
| Term | Railways |
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