A very rare 18th century mahogany stick barometer.
The silvered brass scale calibrated from 27" to 31" and incorporating a sliding vernier and with well engraved weather indications. The mahogany case with thick ebony inlay, exposed mercury tube, turned egg shaped mahogany cistern cover which is typical of Blunt and a rounded top. Also with a very rare removable thermometer fitted over the exposed mercury tube also signed by the maker on the scale.
Note: Thomas Blunt was apprenticed to Edward Nairne in 1760 and became his partner in 1774, trading under the name of Nairne & Blunt. The partnership ended in 1793. Blunt also became Mathematical Instrument Maker to George III.