English, c.1880, engraved 'CARY LONDON' with spirit burner in the base upper water jacket and telescopic thermometer holder (thermometer missing), extended height 31cm
Footnote: sometimes referred to as a 'Hypsometrical Apparatus' this is a portable form of the Wollaston boiling-point thermometer, these instruments were used to check barometers when at height such as when mountaineering or surveying.
Sold for £496
Result plus buyers premium
English, c.1880, engraved 'CARY LONDON' with spirit burner in the base upper water jacket and telescopic thermometer holder (thermometer missing), extended height 31cm
Footnote: sometimes referred to as a 'Hypsometrical Apparatus' this is a portable form of the Wollaston boiling-point thermometer, these instruments were used to check barometers when at height such as when mountaineering or surveying.
Auction: The Collectors Sale, 27th Jan, 2022