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Title: Train tonnage calculator, NER [Go to resource]
Description: Train tonnage calculator, NER. Used at Middlesborough Train Masters Office. Made by Computing Machine Co., West Summit U.S.A. Metal machine in wooden box. Dimensions 8"x5 1/ 2" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1987-7245 Go to resource More Like this...
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