Semicircular protractor
Semicircular protractor, plastic, with paper charts for crystallographic use, 4 by J.H. Steward, London, and 23 by W. Engelmann, Leipzig
Details
- Category:
- Mathematics
- Object Number:
- 1986-595
- type:
- drawing instruments and semi-circular protractors
- credit:
- Steward, D.M.
