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Compass card
Card for a liquid compass.
Card: The card is mica with a down turned rim. It is white with black markings graduated to quarter points and quadrantally in degrees. The degree markings are also on the rim. The card is attached to the dome by a wire frame.
Needle: The four needles are held in tubes attached to the float. Length 4" (10.2 cm)
Pivot: The pivot is incorporated into the domed float and the jewel can be removed by a screw at the top of the dome.
O.A. height 2" (5.1 cm)
Card: The card is mica with a down turned rim. It is white with black markings graduated to quarter points and quadrantally in degrees. The degree markings are also on the rim. The card is attached to the dome by a wire frame.
Needle: The four needles are held in tubes attached to the float. Length 4" (10.2 cm)
Pivot: The pivot is incorporated into the domed float and the jewel can be removed by a screw at the top of the dome.
O.A. height 2" (5.1 cm)
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Object Details
| ID: | ACO1075 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Smith |
| Date made: | circa 1938 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | 153 x 53 mm |