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Title: Beam compass, tubular, divided on silver to 1/20th inch; rea [Go to resource]
Description: Beam compass, tubular, divided on silver to 1/20th inch; reads by vernier to 1/1000th inch; clamp and slow motion; numbered to 45 on brass; extension tube numbered from 46 to 65, divided as above License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: compasses (drawing instruments)
beam compassesSource: Science Museum Identifier: 1876-606 Go to resource More Like this...
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