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Dry compass
Card-Mica with markings painted on. White with black markings graduated to 1/4 points. Open at centre to accommodate pivot cap. Decorated East point.
Needle-Edge bar nedle expanded at centre to accommodate pivot cap, 7.5" (19.1cm) long and 0.5" (1.6cm) deep. Has one moveable brass weight. There is a brass crossbar with one weight at right angles to the needle.
Pivot-A bell-shaped pivot cap set in gimbals.
Needle-Edge bar nedle expanded at centre to accommodate pivot cap, 7.5" (19.1cm) long and 0.5" (1.6cm) deep. Has one moveable brass weight. There is a brass crossbar with one weight at right angles to the needle.
Pivot-A bell-shaped pivot cap set in gimbals.
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Object Details
| ID: | ACO0916 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | George Stebbing & Son |
| Date made: | After 1845 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 15 mm; Diameter: 188 mm |