Admiralty standard prismatic azimuth compass with lead weight in base

Made:: 1850-1860 in London

maker:: Henry Barrow

Admiralty standard prismatic azimuth compass with lead weight in base

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Admiralty standard prismatic azimuth compass with lead weight in base, sighting line, and compass card on metal stand. Made by Henry Barrow for the Admiralty, London, 1850-1860.

Details

Category:: Navigation

Object Number:: 1876-802

Materials:: copper (alloy), glass, metal (unknown), cotton (textile), cardboard and complete

Measurements:: overall (with stand): 263 mm x 241 mm x 230 mm, 5.155kg

type:: variation compass, prismatic compass and magnetic compass

credit:: Admiralty Hydrographic Department

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Parts

Additional compass card for Admiralty standard prismatic azimuth compass

Additional compass card with two magnets for Admiralty standard prismatic azimuth compass. Made by Henry Barrow for the Admiralty, London, 1850-1860.

Measurements:: overall: 12 mm, 155 mm, .05kg

Materials:: complete , cardboard , brass (copper, zinc alloy) and steel (metal)

Object Number:: 1876-802/1

type:: variation compass , prismatic compass and magnetic compass

Admiralty standard prismatic azimuth compass with lead weight in base

Admiralty standard prismatic azimuth compass with lead weight in base, sighting line, on metal stand. Made by Henry Barrow for the Admiralty, London, 1850-1860.