Earth thermometer

Earth thermometer, maximum and minimum, mercury and alcohol-in-glass, fahrenheit, tube bent 8 inches above bulb. Made by C.F. Casella and Co. Ltd, London. Marked MO 18203, 8974 and NPL25 certified in 1925. Min scale 20 to 125, max scale 15 to 100

Details

Category:
Meteorology
Object Number:
1995-1069
Materials:
glass and mercury
Measurements:
overall: 34 cm
type:
earth thermometer, alcohol thermometer, mercury thermometer and maximum & minimum thermometer
credit:
Meteorological Office, Berkshire