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Title: Phonopore Telephone Circuit [Go to resource]
Description: Instructions, Midland & Great Northern Joint Railway, "To Be Observed by Signalmen and Others Concerned on Duty Between Melton Constable East and Yarmouth Inclusive, Respecting Phonopore Telephone Circuit", March 1902. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: instructions Temporal: 1902 Source: Science Museum Creator: Midland & Great Northern Joint Railway Identifier: 2008-8965 Go to resource More Like this...
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