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Title: Sample of third rail track, District Railway [Go to resource]
Description: Sample of third rail track, District Railway, comprising 2 sleepers and chairs, running and conductor rails with joints, bonds, insulators and feeder connections; together with the positive and negative current collecting shoes and their supports. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1930-210 Go to resource More Like this...
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