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Liquid compass card
Card-The card is made of thin aluminium, painted white, with the markings punched out. It is graduated to 8 points and from 0-36 (0-360 degs).
Needle-The two needles are held in aluminium tubes and attached to the float by nut and bolt. Length 3.25" (8.4cm)
Pivot-The pivot is incorporated into the domed float and the jewel can be removed by a screw on the top of the dome.
Needle-The two needles are held in aluminium tubes and attached to the float by nut and bolt. Length 3.25" (8.4cm)
Pivot-The pivot is incorporated into the domed float and the jewel can be removed by a screw on the top of the dome.
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Object Details
| ID: | ACO0900 |
|---|---|
| Type: | Liquid compass card |
| Display location: | Not on display |
| Creator: | Geophysical Corp |
| Date made: | circa 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 35 mm; Diameter: 100 mm |