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Compass card
Card-Mica covered with paper, black with white markings, graduated to 32 points. Has decorated E point. Has four blobs of sealing wax for balancing.
Needle- Single flat bar type 5.5" long, 0.4" wide, with expanded centre to accommodate pivot cap. Needle screwed to card. A "Dolland" compass label is stuck over the expanded centre of needle.
Pivot- Cone-shaped brass pivot cap with jewel at top, screwed through centre of card.
Needle- Single flat bar type 5.5" long, 0.4" wide, with expanded centre to accommodate pivot cap. Needle screwed to card. A "Dolland" compass label is stuck over the expanded centre of needle.
Pivot- Cone-shaped brass pivot cap with jewel at top, screwed through centre of card.
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Object Details
| ID: | ACO0922 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Lorkin, Thomas |
| Date made: | 1825 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 10 mm; Diameter: 142 mm |
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