A good George III mahogany paddle stick barometer by this celebrated London maker.
The elegant case has a figured and beautifully patinated mahogany stem and a moulded surround to the arched brass engraved register plate, which bears the maker’s signature above the indications of the weather from 28 to 31 inches. The case terminates at the base with a boldly turned moulded cistern cover.
Literature
Cary was one of the best-known London barometer and scientific instrument makers in the latter part of the 18th century until his death in 1825. He was
most probably William Cary who operated at various addresses in the Strand between 1786 and 1825. He was the younger brother of John Cary the cartographer and the uncle of George and John Cary. He was a pupil of Jesse Ramsden and became a renowned instrument-maker. His two nephews took over the business when he died in 1825 but because of his very high reputation, they retained the name of William Cary.

Bibliography:
Barometer Makers and Retailers 1660 – 1900 by Edwin Banfield, Baros Books.
English Barometers 1680 - 1860 by Nicholas Goodison, Antique Collectors’ Club.
Signed / Inscribed
Cary London