A mid Ninteenth Century Rosewood stick barometer and thermometer

Details

A mid Ninteenth Century Rosewood stick barometer and thermometer
signed at the apex Casella & Co. 23 Hatton Garden, London, fitted for gimball attachment (lacks gimball) with weighted brass balance -- 37in. (94cm.) high
See illustration

Literature

Clifton, C: Directory of Bristish Scientific Instrument Makers 1550-1851, Zwemmer 1995

Lot Essay

Cassella & Co. are recorded as working between 1848 and 1860 from 23 Hatton Garden where they manufactured a small number of different instruments. In later years the firm was associated with Negretti & Zambra

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