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cross, surveyor's
Sights-Four sight vanes 3.5" (9cm) long. One mounted at each corner of square brass base plate. Two with a vertical slit with a rectangular aperture above. Two with the opposite arrangement.
Compass-Dia. 9.5" (24cm) mounted at centre of instrument. Fitted wih a blued steel flat bar needle which is tapered and has a slightly expanded centre, 8.25" (21cm) long, with a jewelled pivot cap at centre. Graduated to 16 points and quadrantally in degrees.
Compass-Dia. 9.5" (24cm) mounted at centre of instrument. Fitted wih a blued steel flat bar needle which is tapered and has a slightly expanded centre, 8.25" (21cm) long, with a jewelled pivot cap at centre. Graduated to 16 points and quadrantally in degrees.
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Object Details
| ID: | NAV1385 |
|---|---|
| Type: | cross, surveyor's |
| Display location: | Not on display |
| Creator: | Wyk, Jan Van |
| Date made: | circa 1780 |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Overall: 130 mm x 250 mm x 250 mm |
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