Astronomical and navigational instruments, Celestial navigation, Exploring the Arctic

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Black glass artificial horizon

Astronomical and navigational instruments

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Object ID NAV0019
Description A circular brass case on three levelling feet covered with a blackened glass plate serving as mirror. The spirit level is missing. The artificial horizon is contained in a fitted rectangular wooden box, that also contains a box sextant by Gilbert and Sons (NAV1220) and a pocket compass (NAV0466). This instrument belonged to Edward Newell Harrison, clerk of HMS ‘Assistance’. He went to the Arctic in 1850-51 in search of Sir John Franklin, and died in the West Indies before 1855.
Date made circa 1815

Artist/Maker Gilbert & Sons
Place made London
Credit National Maritime Museum, Greenwich, London
Materials metal: brass; inorganic: glass
Measurements Overall: 20 mm x 73 mm x 70 mm
  • Black glass artificial horizon (NAV0019)
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