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Title: Book of Instructions [Go to resource]
Description: A combined issue of regulations affecting double and single line block telegraph regulations, permissive and station yard working regulations. Includes general instructions to be observed by signalmen. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: railway operating document Temporal: Sept. 1929 Source: Science Museum Identifier: 2001-9400 Go to resource More Like this...
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