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Title: Model of Davey-Paxman (1885) steam engine slide valve for var [Go to resource]
Description: Model of Davey-Paxman (1885) steam engine slide valve for variable expansion, on fitting, arranged with 5 others for driving and adjusting by hand License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1903-123 Go to resource More Like this...
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