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Los 278
A walnut cased barograph, J. Hicks, London, circa 1900, the mechanism with seven segment aneroid chamber connected via a brass armature to an inked pointer for recording the change in barometric pressure on a clockwork-driven rotating paper scale lined drum, the interior with ivorine maker s label inscribed J. HICKS, MAKER, LONDON, the case with five panel bevel-glazed cover and stepped ogee moulded base with rounded angles and frieze drawer containing spare charts, 38cm (15ins) wide James Joseph Hicks is recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as working from Hatton Garden, London from 1861 until after 1900. He was a committed Catholic who presented various meteorological instruments to the Vatican receiving the title of Knight Commander of St. Gregory for his services.
Los 333
A gilt brass aneroid barometer and a brass weather forecasting calculator, Negretti and Zambra, London, early 20th century The barometer with 3.5 inch circular silvered register calibrated 28-31 divided into twentieths and inscribed FORECASTING ANEROID, COMPENSATED, NEGRETTI & ZAMBRA, LONDON, 10208 to centre, with blued steel pointer set behind bevel glass, the circumference of the case calibrated with altitude scale 0-3,000 feet with the rear cover rotating to calibrate the pointer for altitude error by referencing an arrow mark engraved to the rim against the scale, with post incorporating knurled nut for locking the rear cover positioned at twelve o clock, 10cm (4ins) diameter. The weather forecasting calculator formed as three discs, the outer calibrated in inches for the barometer reading to the top edge and for the wind direction to the lower edge, the middle ring annotated for STEADY, RISING and FALLING and for summer or winter for lining up with the wind direction scale, the centre with instructions for use, sector revealing appropriate weather forecast and inscribed NEGRETTI & ZAMBRA, LONDON, PATENT 6276, 1915, with hinged strut to rear and suspension ring, diameter 12cm (4.75ins); both contained in two-part hinged velvet lined case 14.5cm (16ins) wide. Together with a Smiths stopwatch Please see our website for footnote regarding the firm of Negretti & Zambra. The firm of Negretti & Zambra are recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as being established in 1850 when a partnership between Enrico Negretti and Joseph Warren Zambra was formed. The firm became one of the most prolific makers of scientific instruments and continued trading well into the 20th century. The forecasting calculator was patented by Negretti and Zambra in 1915 using observations of actual weather conditions over a ten year period and was said to be 80% accurate by the manufacturers.
Los 17
EARLY TWENTIETH CENTURY COMBINATION CLOCK, THERMOMETER AND ANEROID BAROMETER, in an inlaid rosewood longcase clock pattern case, the 4" enamelled Roman dial with keywind movement, above a mercury thermometer to the trunk and aneroid barometer to the base, housed in an arch topped case with fan and ebony line inlays and stopped plinth, 19" (48.3cm) high
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60592 Los(e)/Seite