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Title: Mounted photo 9"x11" of Westinghouse electric point and lock [Go to resource]
Description: Mounted photo 9"x11" of Westinghouse electric point and lock machines, style m, at Wembley park, Metropolitan Railway License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: photograph Source: Science Museum Identifier: 1925-723 Go to resource More Like this...
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