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Description: | SHERRILL COMPASS/MODEL M-6/SERIAL No 20895/ORDNANCE DRAWING NO. 7067878/ SHERRILL RESEARCH CORPORATION/PERU,INDIANA, USA
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.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | liquid compasses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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