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Date: |
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Description: | Cary London
Combined Surveyor's Compass, Level and Inclinometer
Bowl-Dia. 3" (7.6cm) mounted at centre of wooden box and fitted with brass verge ring and a brass stud operating a card lifting mechanism.
Card-Dia. 2.75" (7cm) paper covered mica (?). White with black markings, graduated quadrantally in degrees. Fitted with a brass jewelled pivot cap at centre. At centre of card is a table of tangents.
Sights-Two brass sight vanes are mounted on base of box, one vane with a peep-hole sight and the other with a hole and cross wires.
Spirit level-Length 1.5" (3.8cm) mounted in right hand side of base of box.
Inclinometer-Brass quadrant 2.75" (7cm) radius graduated to 90 degs by 1o and fitted with a brass index arm 2.3" (6cm) long. Mounted in lid of box.
Audit - Object needs to be marked with its NAV number.
caption: unavailable
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | surveying compasses | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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