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Compass card
Card-Mica covered with paper, white with black markings, graduated to 1/2 points with decorated East point.
Needle- Eight solid edge bar needles varying from 1.85" to 4.252 in length, attached to a metal ring which is attached to card.
Pivot-A heavy central boss carries the jewel cap which is secured by a counter nut.
Needle- Eight solid edge bar needles varying from 1.85" to 4.252 in length, attached to a metal ring which is attached to card.
Pivot-A heavy central boss carries the jewel cap which is secured by a counter nut.
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0960 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Preston, Grant |
| Date made: | 1837-1840; 1837-40 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 20 mm; Diameter: 110 mm |