Circular protractor, 1765-1770

Made:
1765-1770 in London
maker:
John Troughton

Six inch circular protractor by John Troughton, in mahogany case, c.1785

Details

Category:
Mathematics
Object Number:
1918-122
Materials:
brass (copper, zinc alloy), mahogany (wood) and complete
type:
drawing instrument and circular protractor
credit:
Thomas H. Court

Parts

Case for 6-inch circular protractor

Case for 6-inch circular protractor

Mahogany case for 6- inch circular protractor by John Troughton, c.1785

Materials:
mahogany
Object Number:
1918-122 Pt1
type:
instrument case