Circular protractor

Brass circular protractor with a single cross piece. Two scales: the inner graduated quadrantally; the outer 1-360 degs.

Object Details

ID: NAV0578
Type: Circular protractor
Display location: Not on display
Creator: Nicholl, Robert
Date made: circa 1875
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 3 mm; Diameter: 152 mm
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