Thermometer
Negretti and Zambra
Category
Scientific instruments
Date
Unknown
Materials
Metal, glass, mercury
Measurements
2.75 ins (h)11.75 ins (w)1.5 ins (d)
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Shaw's Corner, Hertfordshire
NT 1274905
Summary
A maximum/minimum thermometer, white painted metal frame, sloping roof. Horizontal u-tube (bulb broken). White back plate with black markings. Top scale "HEAT", bottom scale "COLD", both graduated -10 to +130 dg F. In centre of thermometer "NEGRETTI and ZAMBRA, LONDON".
Provenance
Bequest of George Bernard Shaw, 1950
Makers and roles
Negretti and Zambra, scientific instrument maker