Alexander George Antiques Ltd. has dated this piece to the 18th Century.
The dual scales, designed to indicate air pressure, can be adjusted vertically to account for different altitudes. The right-hand scale includes a vernier for precise readings and also serves as a setting hand, while the left-hand scale is marked for summer readings, and the right for winter. The Torricelli tube is concealed behind a large, half-round walnut cover.
The cistern, fitted with a leather bottom, features a minuscule hole to allow air pressure changes to register accurately. The barometer's arched top is adorned with three ball finials on bases, and the area above the scales is finely pierced and flanked by delicate twist columns, which rest on a moulded support. Two shaped drop finials, suspended beneath the support and aligned with the columns, enhance the instrument's elegant design.
Note: The suspension hole in the pediment is original and consistent with barometers from this period.
The barometer has been entirely conserved and is presented in excellent condition.
Height: 100 cm (39.5 inches).
Literature:
E. Banfield, Barometers, Stick or Cistern Tube, Trowbridge, 1985, pp. 27-35.
N. Goodison, English Barometers 1680-1860, Woodbridge, 1977, pp. 49 (Plate 8), 201 (Plate 133).
Alexander George Antiques Ltd. has dated this piece to the 18th Century.
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Rare Early 18th Century Queen Anne Walnut Stick Barometer, Circa 1705-1710
