P A Oxley Antique Clocks & Barometers has dated this piece to the 1750s.
The engraved inscription to the arch reads; Made by G. Adams, No 60 Fleet Street, London. Instrument Maker to his Majesty. The fine mahogany case with exposed mercury tube, surrounded with herringbone mahogany veneer, well turned mahogany cistern cover and architectural top with central brass finial. Height: 40"

Note: George Adams was an outstanding barometer maker, optician and instrument maker. He was apprenticed to James Parker in 1724 and Thomas Heath in 1726 who was also a maker of some note. He was instrument maker to His Majestys Office of Ordnance between 1746 and 1748. He became instrument Maker to the Prince of Wales in the 1750s and then Instrument Maker to his Majesty King George III in 1760. George Adams died in 1773 leaving two sons by the names of George and Dudley to carry on the business into the 19th century.
P A Oxley Antique Clocks & Barometers has dated this piece to the 1750s.
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