Maximum thermometer

Made:
1961 in London
maker:
B. Black and Son Limited

Maximum thermometer, mercury-in-glass, sheathed, centigrade, by B. Black & Son Ltd. Marked BS692, Max 3C, Met Ref No 21102, MO26272/61, NPL 61, dated 1961. Scale -30 to 45

Details

Category:
Meteorology
Object Number:
1995-1061
Materials:
glass and mercury
Measurements:
overall: 34 cm
type:
thermometer
credit:
Meteorological Office, Berkshire