Earth thermometer

Made:
1925 in London

Earth thermometer, maximum and minium, mercury and alcohol-in-glass fahrenheit, by Negretti & Zambra, London. Marked MO 18202, N & Z, NPL25-26. Certified in 1925-26. Scale 20 to 100

Details

Category:
Meteorology
Object Number:
1995-1070
Materials:
glass and mercury
Measurements:
overall: 46 cm
type:
earth thermometer, alcohol thermometer, mercury thermometer and maximum & minimum thermometer
credit:
Meteorological Office, Berkshire