GEORGE III MAHOGANY STICK BAROMETER, BY WILLIAM CARY, LONDON LATE 18TH/ EARLY 19TH CENTURY the signed brass dial having mercury Fahrenheit thermometer and main scale with manual vernier, inscribed CARY LONDON, the long trunk with moulded edge and visible tube (95cm high) Footnote: Provenance: The Earls of Crawford and Balcarres, Balcarres House, Fife, Scotland