A RARE GEORGE III INLAID MAHOGANY MERCURY WHEEL BAROMETER
A RARE GEORGE III INLAID MAHOGANY MERCURY WHEEL BAROMETERJ. Thompson, Northampton, late 18th centuryThe 8.5 inch circular silvered register signed J. THOMPSON, NORTHAMPTON to the centre within scale calibrated in barometric inches and with the usual weather observations to outer track, set behind hinged circular glazed moulded wood bezel incorporating additional recording hand to the glass and with chevron line border decoration, the triple line-edged case with open triangular pediment above oval urn inlaid panel and arch-glazed Fahrenheit scale spirit tube thermometer flanked by further paterae to the baluster shaped upright, the rounded base further inlaid with a fan rosette.97cm (38.25ins) high excluding finial. J. Thompson of Nottingham appears not to be recorded in the usual sources however it is likely that he is a related to John (IV) Thompson who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working in Nottingham 1835-44.The current lot is notable in being a rarely early example of its type most likely being made in the 1790's. Early features include the wooden as well as the truncated design of the top of the case.Condition Report: The tube is filled with no apparent airlocks and is currently plugged for transport. The mechanism is complete and in working condition however will require setting up. The register is in good condition with some light spotting/discolouration to the silvering. The thermometer has some patchy tarnishing to the scale and a crack to the glass. The case has a replacement rear door otherwise is in fair presentable condition with some historic bumps, scuffs, minor repairs and light shrinkage cracking/veneer movement to sides. Condition Report Disclaimer
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A RARE GEORGE III INLAID MAHOGANY MERCURY WHEEL BAROMETERJ. Thompson, Northampton, late 18th centuryThe 8.5 inch circular silvered register signed J. THOMPSON, NORTHAMPTON to the centre within scale calibrated in barometric inches and with the usual weather observations to outer track, set behind hinged circular glazed moulded wood bezel incorporating additional recording hand to the glass and with chevron line border decoration, the triple line-edged case with open triangular pediment above oval urn inlaid panel and arch-glazed Fahrenheit scale spirit tube thermometer flanked by further paterae to the baluster shaped upright, the rounded base further inlaid with a fan rosette.97cm (38.25ins) high excluding finial. J. Thompson of Nottingham appears not to be recorded in the usual sources however it is likely that he is a related to John (IV) Thompson who is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working in Nottingham 1835-44.The current lot is notable in being a rarely early example of its type most likely being made in the 1790's. Early features include the wooden as well as the truncated design of the top of the case.Condition Report: The tube is filled with no apparent airlocks and is currently plugged for transport. The mechanism is complete and in working condition however will require setting up. The register is in good condition with some light spotting/discolouration to the silvering. The thermometer has some patchy tarnishing to the scale and a crack to the glass. The case has a replacement rear door otherwise is in fair presentable condition with some historic bumps, scuffs, minor repairs and light shrinkage cracking/veneer movement to sides. Condition Report Disclaimer
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