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7 Inch Brug- of Bridgeframe sextant Nr. 1226, 1794
Jesse Ramsden, London
Maker:
Collectie:
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One of the very fine and accurate sextants of the famous Jesse Ramsden
which could greatly improve the accuracy of the scale with an automatic engraving and dividing machine.
1/1
Bridge- Framed Laquered Brass sextant, signed at the apex Ramsden London, ans numbered 1226, The inset silvered scale divided to 130°, Verneier with lateral adjusting telescope, Bridge-framed supporting adjustable sighting tube socket, mirrors and six shades and treated hardwood handle, contained in fitted keystone box with tubes.
Probably one tube missing.
Provenance: collection of mr. Peter James McSloy, 1946-2012
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