Chetwynd liquid compass

Chetwynd liquid compass, pattern no

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Chetwynd liquid compass, pattern no
Science Museum Group
© The Board of Trustees of the Science Museum

Chetwynd liquid compass, pattern no.22, with mica compass card and two Hammersley type expansion chambers sat on an annealed glass bowl of oil, by Kelvin and James White Ltd., Glasgow, Scottish, 1905-1912

Details

Category:
Navigation
Object Number:
1924-407
Materials:
glass, brass (copper, zinc alloy), paint, iron, mica and oil (unspecified)
Measurements:
overall: 264 mm x 246 mm x 223 mm, 9.16kg
type:
mariner's compass and magnetic compass
credit:
Lord Commissioners of the Admiralty