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