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Title: model ground disc signal [Go to resource]
Description: Model signal, scale 1:6, Midland Railway, ground disc, 1910. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: model signal Temporal: 1910 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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