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Liquid compass - tank
Bowl-Clear plastic, contained in a black plastic outer casing having a rectangular aperture through which card is viewed. Inside of bowl fitted with a white plastic lubber line. Corrector magnets are fitted above and below bowl. Mounted in a black painted bulkhead mounting bracket.
Card-Dia:1.5" (3.8cm). Black plastic with white markings on vertical edge, graduated to 360 degs.
Needle- Two needles of square section mounted below card.
Pivot-Stem mounted to base of bowl carries a brass (?) pivot which engages in jewelled cup moulded into centre of plastic card.
Card-Dia:1.5" (3.8cm). Black plastic with white markings on vertical edge, graduated to 360 degs.
Needle- Two needles of square section mounted below card.
Pivot-Stem mounted to base of bowl carries a brass (?) pivot which engages in jewelled cup moulded into centre of plastic card.
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Object Details
| ID: | ACO0787 |
|---|---|
| Type: | Liquid compass - tank |
| Display location: | Not on display |
| Creator: | Sherrill Research Corporation |
| Date made: | circa 1944 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 90 mm x 130 mm x 130 mm |
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