One of two brass 6-inch semi-circular protractor
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One of two brass 6-inch semi-circular protractor , divided in half degrees, by W.F. Stanley, London, 1876.
Details
- Category:
- Mathematics
- Object Number:
- 1876-639/2
- Materials:
- brass (copper, zinc alloy)
- Measurements:
-
overall: 3 mm x 150 mm 94 mm, .01 kg
- type:
- protactor (mathematical)
- credit:
- W.F. Stanley and Company
