Mercury full immersion nitrogen filled thermometer

Made:
1950-1989 in London
maker:
B. Black and Son Limited
Mercury full immersion nitrogen-filled thermometer

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Mercury full immersion nitrogen-filled thermometer
Science Museum Group
© The Board of Trustees of the Science Museum

Mercury full immersion nitrogen-filled thermometer, measuring in the range 0-50 degrees Centigrade, probably made by B. Black and Son Limited, London, and supplied by Scientific and Projections Limited, 1950-1989

Details

Category:
Heat
Object Number:
1997-1490
Materials:
mercury, glass and nitrogen
Measurements:
overall: 406 mm x 7 mm, 0.04kg
type:
mercury thermometer
credit:
British Gas plc