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Title: 2 hard rubber blocks about 8 5/8"x 4"x 3 5/8"; an iron "wash [Go to resource]
Description: 2 hard rubber blocks about 8 5/8"x 4"x 3 5/8"; an iron "washer" 6 7/8" o.d. and 2 3/16" i.d. with rubber rings moulded on License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1993-1593/33 Go to resource More Like this...
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