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A fine George Adams combined barometer, thermometer and hydrometer, English, circa 1780, image 1
A fine George Adams combined barometer, thermometer and hydrometer, English, circa 1780, image 2
Lot 50

A fine George Adams combined barometer, thermometer and hydrometer,
English, circa 1780,

Amended
31 October 2017, 13:00 GMT
London, Knightsbridge

Sold for £11,250 inc. premium

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A fine George Adams combined barometer, thermometer and hydrometer, English, circa 1780,

signed Made by Geo. Adams in Fleet Street LONDON Instrumt. Maker to His Majesty, the mahogany case with ebony lining and large semi-spherical mercury reservoir cover at the base surmounted by thermometer capillary and reservoir with slated brass cover and finely engraved silvered brass scale, above with mercury capillary and silvered scale with vernier, surmounted by hydrometer scale with adjustment and broken pediment with spherical brass finial, 44in (112cm)

Footnotes

A catalogue of Adams' instruments appears in the second edition of his Treatise on globes which was printed in 1769 and gives a comparison in prices of the various types of barometer offered for sale:

£ s p
Barometers.................................2 2 0
Ditto, with thermometers...................2 12 6
Ditto......................................5 5 0
Ditto, with hygrometers....................5 15 6

Saleroom notices

Please note: this is a hygrometer, not a hydrometer by George Adams senior, and is dated 1760, not 1780.

Additional information

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