180-Degree Protractor
- Made:
- 1870-1880 in unknown place
This image is released under a CC BY-NC-SA 4.0
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Science Museum Group
© The Board of Trustees of the Science Musuem
Unsigned semi-circular protractor, c.1870
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Unsigned semi-circular protractor.
Details
- Category:
- Mathematics
- Object Number:
- Y1992.143.3
- Materials:
- brass (copper, zinc alloy)
- Measurements:
-
overall: 2 mm x 1218 mm x 109 mm,
- type:
- protractor
- credit:
- Purchased From J.R. Parkinson Son & Hamer Auctions
