rolling parallel rule

Rolling parallel rule, brass straight edge with raised bar across centre and 2 rotating wheels. In wooden case with "B.G. Harris" written inside lid. 25 1/4"x3 3/4"x2"

Details

Category:
Tools of the Trade & Personal Accessories
Object Number:
1987-8476
Materials:
brass (copper, zinc alloy)
Measurements:
overall: 25 1/4 in x 3 3/4 in x 2 in,
type:
rolling parallel rule