Oval pattern-frame sextant.

Made:
1851-1856 in Fleet Street
maker:
Newton and Company Limited

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Anodized brass sextant, oval-pattern frame type, with polished brass limb and wooden handle with fitted square wooden case (trade card on lid), by Newton & Co 3 Fleet St. Temple Bar City of London, England, 1851-1856. Consists of inlaid silver scale (-5° to 160°) with 10' divisions, two sets of filter shades (4 & 3, all green) and reading magnifier on a swivel arm (90mm). Fitted with threaded telescope bracket with collimation correction for two telescopes, 84mm & 186mm (erect & inverted images) and sighting tube (82mm).

Details

Category:
Surveying
Object Number:
1865-6
Materials:
brass, glass and silver
type:
sextant
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
credit:
Newton & Co.