LOT 37 Two George III brass refracting telescopes, Jesse Ramsden, London, late 18th century
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Two George III brass refracting telescopes Jesse Ramsden, London, late 18th century The first 1.5 inch two-draw with shuttered eyepiece and inscribed Ramsden, London, Day or Night to first draw, the exterior with mahogany sleeve grip and brass sliding sun shade, 91.5cm (36ins) long extended and 38cm (15ins) closed; the second 2 inch single draw with screw fine focus adjustment and signed Ramsden to the body tube, (focus screw inoperative, formerly mounted on a stand). 38cm (15ins) long closed. Jesse Ramsden is recorded in Clifton, Gloria Ramsden, 'Directory of British Scientific Instrument Makers 1550-1851' as working from several addresses in London 1762 until his death in 1800, however by 1782 both his workshop and principal retail outlet were on Piccadilly. He was one of the finest instrument makers of the period being particularly well known for his invention of a dividing engine and subsequent equatorial telescope stands.
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Donnington Priory Newbury Berkshire RG14 2JE United Kingdom
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