Wet and dry bulb hygrometer

Wet and dry bulb hygrometer, mercury in glass, Fahrenheit, by Brannan of London. Scale marked on back plate, reservoir for wet bulb missing. Scale 20 to 120

Details

Category:
Meteorology
Object Number:
1995-1810
Materials:
glass, mercury and plastic
Measurements:
overall: 21.5 cm
type:
hygrometer
credit:
Meteorological Office