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Title: Semaphore signal arm with integral spectacle and secondary s [Go to resource]
Description: Semaphore signal arm with integral spectacle and secondary spectacle, two glasses cracked, crossing gate signal, lower quadrant, Great Eastern Railway, made by EC & JK Ltd. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: signal arm Source: Science Museum Creator: EC & JK Ltd. Identifier: 2002-7335 Go to resource More Like this...
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