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Description: | CAMERON'S AZIMUTH, DIAL COMPASS GLASGOW
Dry compass
Card: Mica covered with paper, white with black markings, graduated to quarter points and quadrantally in degrees. At centre part of card is a circle graduated in Roman numerals to 24 hours and an inner graduation quadrantal 1 - 8
Needle: Two slightly curved edge bar needles, 7.5" (19.0 cm) in length, attached to card by brass struts. A small brass balancing disc is mounted to South side of centre of card.
Pivot: Bell shaped brass pivot cup and balancing weight, fitted with jewell cal at apex of bell, attached to centre of card by a brass disc set in card. Upper part of jewel cap has a stile pin set in it, for taking bearings of the sun by its shadow cast on card.
Inscription.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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