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Title: Tydd box [Go to resource]
Description: Signalling diagram, Tydd box, Midland Railway, 1896. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: signalling diagram Temporal: 1896 Source: Science Museum Creator: Midland Railway Identifier: 2004-7678 Go to resource More Like this...
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