protractor, circular surveyor's

Protractor, circular surveyor's with rotating arm. Brass frame. Silver scale and vernier. Scale reads to 30' of arc. Vernier reads to 1' of arc.

Object Details

ID: NAV0577
Type: protractor, circular surveyor's
Display location: Not on display
Creator: Cary
Vessels: Great Eastern (1858)
Date made: circa 1825
People: Moriarty, Henry Augustus
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 10 mm x 270 mm x 170 mm
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