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Liquid compass
Bowl: Copper with brass verge ring holding glass. Fill cap at the centre of glass. Two exterior expansion chambers of brass and glass (one missing) connected by tubes to the bowl. Card lifter on exterior wall of bowl. Weighted at the base. White inside with lubber line .
Card: Metal with embossed graduations to half points. Card in bad condition. Diameter 6" (15.1cm)
Needle: Unsighted.
Pivot: Unsighted.
Mounted on ACO stand
O.A. Height 7.75" (19.5cm)
Card: Metal with embossed graduations to half points. Card in bad condition. Diameter 6" (15.1cm)
Needle: Unsighted.
Pivot: Unsighted.
Mounted on ACO stand
O.A. Height 7.75" (19.5cm)
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Object Details
| ID: | ACO0132 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Preston, Grant; Preston, Grant |
| Date made: | circa 1832 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 205 mm x 275 mm x 225 mm |