Boxwood differential thermometer by Watkins & Hill
£1,600
Circa
1825
Maker
Watkins & Hill of London
Country of manufacture
UK and Ireland
Description
An early boxwood differential thermometer by Watkins & Hill of London, circa 1825.
Signed to the rear of the thermometer scales: WATKINS & HILL 5 CHARING CROSS LONDON
Both scales divided 50 – 0 – 50.
Height: 37 cm.
Width: 26 cm.
Depth: 14 cm.
The thermoscope, or differential thermometer, used to measure the transmission of heat was invented in the early nineteenth
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Dealer information
Hatchwell Antiques
Hatchwell Antiques is based at 533 King's Road, Chelsea, London.
www.hatchwellantiques.co.uk
[email protected]
Members of LAPADA, BADA & CINOA.
