Brass double-frame sextant. Science Museum Group Collection
By A Mystery Man Writer
Description
Anodized brass sextant, double-frame bridge (straight-bar) type, with polished brass limb and wooden handle, by W Harris and Company, 50 Holborn London, England, 1830-1839. Consists of inlaid 120° silver scale (-5° to 149°) with 10' divisions, gold vernier scale (20") two sets of filter shades (3 & 2, red & green) and reading magnifier on a on a worm screw. Fitted with threaded telescope bracket with collimation correction for two telescopes, 83mm (erect image).
![Brass double-frame sextant. Science Museum Group Collection](https://collections.rmg.co.uk/media/439/9/f6013_002.jpg)
Sextant Royal Museums Greenwich
![Brass double-frame sextant. Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/459/675/large_smg00271180.jpg)
Sextant by Jesse Ramsden with case
PRODUCT FEATURE: This absolutely beautiful and functional brass sextant with a antique Brass finish. This Brass Sextant is made from premium quality
![Brass double-frame sextant. Science Museum Group Collection](https://m.media-amazon.com/images/I/71aKHIFY3ZL._AC_UF894,1000_QL80_.jpg)
Sailor's Art Antique Brass Nautical Sextant Wooden Box-Navigation Instruments Nautical Sextant -C-1679 J. Scott London Brass Sextant 5 for Mariners
Antique Scientific Instrument Collection of Mark McElyea
![Brass double-frame sextant. Science Museum Group Collection](https://c8.alamy.com/comp/2JG4K5P/sextant-sextant-metal-frame-with-a-circular-sector-of-60-amplitude-in-its-anterior-face-a-limbo-is-recessed-on-which-the-alidada-slips-which-revolves-around-the-zero-center-of-the-limbo-the-alidada-carries-at-its-end-an-nonian-that-moves-graduated-and-to-fix-it-the-device-is-provided-with-a-pressure-screw-and-a-coincidence-by-half-of-the-same-a-magnifying-glass-with-a-look-to-read-the-graduation-perpendicular-to-the-plane-of-the-limbo-are-the-mirrors-one-attached-to-the-alidada-and-another-to-one-of-the-arms-of-the-frame-they-have-half-transparent-and-the-other-azogada-on-the-othe-2JG4K5P.jpg)
A sextant hi-res stock photography and images - Page 7 - Alamy
![Brass double-frame sextant. Science Museum Group Collection](https://theframeblog.files.wordpress.com/2023/06/2-willem-isaacsz-swanenburg-d1612-after-jan-cornelisz-woudanus-hortus-botanicus-in-leiden-1610-etching-leiden-university-libraries-collbn-315-ii-n-41.jpg)
Science, gardens and the Baroque frame
PRODUCT FEATURE: This absolutely beautiful and functional brass sextant with a antique Brass finish. This Brass Sextant is made from premium quality
![Brass double-frame sextant. Science Museum Group Collection](https://m.media-amazon.com/images/I/51V55h7PO9L._SY350_PKmb-play-button-overlay_.jpg)
Sailor's Art Antique Brass Nautical Sextant Wooden Box-Navigation Instruments Nautical Sextant -C-1679 J. Scott London Brass Sextant 5 for Mariners
![Brass double-frame sextant. Science Museum Group Collection](https://collections.rmg.co.uk/media/439/43/f6016_002.jpg)
Sextant Royal Museums Greenwich
![Brass double-frame sextant. Science Museum Group Collection](https://i.etsystatic.com/39259834/c/2058/2058/0/314/il/d87475/5475615696/il_300x300.5475615696_26ad.jpg)
Antique Sextant
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per adult (price varies by group size)