Mason's wet and dry bulb hygrometer

Made:
1850 in London
maker:
Henry Barrow and Company, Henry Barrow & Co.
Mason's wet and dry bulb hygrometer (hygrometer)

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Mason's wet and dry bulb hygrometer, made by Henry Barrow & Co., London in 1850, certified as free from error by James Glaisher 1850 March 28, in case

Details

Category:
Meteorology
Object Number:
1995-935
Materials:
glass, brass, leather and paper
Measurements:
case: 1.7 x 27.2 x 6.4 cm
type:
hygrometer
credit:
Meteorological Office, Berkshire