Folding-arm brass protractor by Troughton & Simms

Made:
1840-1860 in London
maker:
Troughton and Simms Limited

Folding-arm brass protractor by Troughton & Simms, London, in wooden case, mid 19th century.

Details

Category:
Mathematics
Object Number:
1970-353
Materials:
brass (copper, zinc alloy) and wood (unidentified)
type:
drawing instruments and folding arm protractors
credit:
Natural History Museum.

Parts

Wooden case for Folding-arm brass protractor by Troughton & Simms

Wooden case for Folding-arm brass protractor by Troughton & Simms

Wooden case for Folding-arm brass protractor by Troughton & Simms, London, mid 19th century.

Materials:
mahogany (wood)
Object Number:
1970-353 Pt2
type:
instrument cases