Self-registering compass on elaborate brass stand, clockwork mechanism records the ship's head every 3 minutes

Made:: 1848-1864

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Self-registering compass on elaborate brass stand, clockwork mechanism records the ship's head every 3 minutes, patented and made by D. Napier and Son, London, England, 1848

Details

Category:: Navigation

Object Number:: 1874-36

Materials:: copper (alloy), brass (copper, zinc alloy), lead (metal) and paper (fibre product)

Measurements:: overall: 250 mm x 317 mm x 278 mm, 7.005kg

type:: mariner's compass and magnetic compass

credit:: D Napier and Son

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Parts

Carrying case for self-registering ships compass

Carrying case for self-registering compass on elaborate brass stand, clockwork mechanism records the ship's head every 3 minutes, patented by D Napier and Sons, London in 1848, made by James M. Napier.