Protractor by Dollond, late 18th century
- maker:
- Dollond family
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LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseBrass rectangular protractor, by Dollond, size 5 1/4 x 2'
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Brass rectangular protractor, by Dollond, size 5 1/4" x 2", engraved "Dollond, London"
Rectangular protractor in brass, engraved "Dollond, London", late 18th century.As well as the usual angular scale the instrument contains a diagonal scale for plotting distances on a map or plan.
Details
- Category:
- Mathematics
- Object Number:
- 1915-388
- Materials:
- brass (copper, zinc alloy)
- Measurements:
-
overall: 1 mm x 160 mm x 50 mm, 0.076 kg
- type:
- protractor.
- credit:
- Thomas H. Court
