Proportional compasses

Made:
1720-1753 in London
maker:
Thomas Heath

Proportional compasses, 6 3/8-inch; brass engraved "T. Heath Fecit"

Details

Category:
Mathematics
Object Number:
1917-90
Materials:
brass
Measurements:
overall (wall mounted): 155 mm x 67 mm x 18 mm,
type:
proportional compass
credit:
Thomas H. Court