Magnetic compass, European, 1700-1730

Made:
1700-1730 in Europe
maker:
Unknown

Magnetic variation compass (?), European, 1700-1730. Fitted with 8.5cm needle, set in 23cm x 23cm brass plate, with gnomon and plumbline 30 degree variation scale, hours, and 180 outer scale. [shows time, mag. and geog. south]

Details

Category:
Surveying
Object Number:
1986-654
Materials:
brass (copper, zinc alloy), copper (alloy), cotton (fibre), glass, iron, lead alloy, wood (mahogany), zinc plate
type:
magnetic compass
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
credit:
Christie's South Kensington Limited

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