Mariner's quadrant
        
        Mariner’s quadrant with an engraved scale along the circular edge of the instrument, from 0° to 90° by 1°. Every five degree line has been extended to the apex of the instrument.
A polished brass quarter circle with two sights on the right-hand edge. The back of the instrument is blank apart from a thinly engraved circle with a diameter of 108 mm. The plumb bob is probably a later replacement
      
    A polished brass quarter circle with two sights on the right-hand edge. The back of the instrument is blank apart from a thinly engraved circle with a diameter of 108 mm. The plumb bob is probably a later replacement
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Object Details
| ID: | NAV1053 | 
|---|---|
| Collection: | Astronomical and navigational instruments | 
| Type: | Mariner's quadrant | 
| Display location: | Not on display | 
| Creator: | Unknown | 
| Date made: | circa 1600 | 
| Credit: | National Maritime Museum, Greenwich, London. Caird Fund. | 
| Measurements: | Overall: 10 mm x 180 mm x 250 mm | 
 
                     
                     
                    