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Liquid compass card
Liquid compass
Card: This card consists of two flat circular pieces of metal joined at the edges by metal rims half an inch wide. There is a circular aperture at the centre to hold the pivot gimbals. The card is white with black markings graduated to quarter points. The East point is decorated.
Needle: The needle is a circular band soldered to the bottom of the card. Diameter 5.5" (13.9 cm)
Pivot: The inverted pivot spike is mounted in gimbals at the centre of the card.
Card: This card consists of two flat circular pieces of metal joined at the edges by metal rims half an inch wide. There is a circular aperture at the centre to hold the pivot gimbals. The card is white with black markings graduated to quarter points. The East point is decorated.
Needle: The needle is a circular band soldered to the bottom of the card. Diameter 5.5" (13.9 cm)
Pivot: The inverted pivot spike is mounted in gimbals at the centre of the card.
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Object Details
| ID: | ACO1038 |
|---|---|
| Type: | Liquid compass card |
| Display location: | Not on display |
| Creator: | Preston, Grant |
| Date made: | 1844 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 35 mm; Diameter: 150 mm |