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Dry compass
Dry compass
Card: Vertical metal ring 1.5" deep, outer edge painted white with black markings graduated to half points and quadrantally in degrees.
Needle: Two edge bar needles 5.15" in length, mounted in light brass double gimbals at centre of ring of card.
Pivot: A light brass strut attached across diameter of inner gimbal ring is provided with a hole in which to attach pivot (missing).
Card: Vertical metal ring 1.5" deep, outer edge painted white with black markings graduated to half points and quadrantally in degrees.
Needle: Two edge bar needles 5.15" in length, mounted in light brass double gimbals at centre of ring of card.
Pivot: A light brass strut attached across diameter of inner gimbal ring is provided with a hole in which to attach pivot (missing).
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Object Details
| ID: | ACO1016 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | Gowland, George |
| Date made: | 1854 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 40 mm; Diameter: 175 mm |