Brass single-arm protractor divided in half degrees and reading by vernier to one minute of arc
Brass single-arm protractor divided in half degrees and reading by vernier to one minute of arc. Arm projects 3 inches beyond circle.
Two single-arm protractors
- manufacturer:
- W F Stanley and Company Limited
Two brass single-arm protractors divided in half degrees and reading by vernier to one minute of arc. Arm projects 3 inches beyond circle
Details
- Category:
- Mathematics
- Object Number:
- 1876-640
- type:
- drawing instruments and semi-circular protractors
- credit:
- W.F. Stanley and Company
Parts
Brass single-arm semi-circular protractor
Brass single-arm semi-circular protractor divided in half degrees and reading by vernier to one minute of arc. Arm projects 3 inches beyond circle.
