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LicenseAnodized brass sextant, oval-pattern frame type
Science Museum Group
© The Board of Trustees of the Science Museum
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 (copper, zinc alloy), glass and silver (metal)
- type:
- sextant
- credit:
- Newton & Co.
