Protractor and parallel rule combined

Made:: 1740-1750 in London

maker:: George Adams

Folding protractor and parallel rule combined, George Adams

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Folding protractor and parallel rule combined, George Adams
Science Museum Group
© The Board of Trustees of the Science Museum

Folding protractor and parallel rule combined, George Adams, London, 1740-1750.

Details

Category:: Mathematics

Object Number:: 1923-469

Materials:: brass (copper, zinc alloy)

Measurements:: overall: 3 mm x 150 mm x 51 mm, .9kg

type:: drawing instrument, combined scale protractor and parallel rule

credit:: Thomas H. Court

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Protractor and parallel rule combined

Details

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