Semicircular brass protractor by William Wilton

Made:: 1825-1859 in England

Semicircular brass protractor by William Wilton, in original mahogany case; circle about 4 3/8" radius, divided in half degrees and reading by vernier to one minute of arc ( portion of lid (of case) broken at one hinge)

Details

Category:: Mathematics

Object Number:: 1923-287

Materials:: brass

type:: drawing instrument and semi-circular protractor

credit:: Poulter, H.W.

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Parts

Mahogany case for Wilton's brass protractor

Mahogany case for Semicircular brass protractor by William Wilton

Materials:: mahogany

Object Number:: 1923-287 Pt1

type:: instrument case

Semicircular brass protractor by William Wilton

Semicircular brass protractor by William Wilton, circle about 4 3/8" radius, divided in half degrees and reading by vernier to one minute of arc ( portion of lid (of case) broken at one hinge)