A George III mahogany cased 'Great Double Barometer', by Domenico Sala, circa 1780, with boxwood scales and Fahrenheit spirit thermometer to left of tube, set in arched mahogany frame with boxwood inserts, signed Domenico Sala Great Double...

A George III mahogany cased 'Great Double Barometer', by Domenico Sala, circa 1780, with boxwood scales and Fahrenheit spirit thermometer to left of tube, set in arched mahogany frame with boxwood inserts, signed Domenico Sala Great Double Barometer, 108cm high Provenance: Sotheby's, London, 4 February 1966, lot 125, £40. Literature: N. Goodison, English Barometers, 1977, pl. 53, pp. 102-3. Note: Sir Nicholas Goodison notes: This is an early London example of the en contraleur barometer in which the mercury column pushes a more volatile liquid upwards from the bulb cistern to extend the scale, in this case to about 28.1/2 inches. Please note Roseberys do not guarantee the working condition of barometers offered for sale.

This lot contains liquid mercury. If you intend to ship this overseas it is classified as hazardous cargo and will require additional declarations alongside specialist crating/packing. Prior to bidding, please contact your shipper or talk to our specialists for more information.
Please note that this barometer contains mercury