Cased set of thermometers

Made:
1850-1924 in London

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Pair of thermometers, one alcohol-in-glass, one mercury-in-glass, both measuring in the range -30 to 50 degrees Centigrade one broken, marked in both degrees Centigrade and degrees Fahrenheit, mounted together on wood, made by Negretti and Zambra, London, in case, case marked ?M.S.R.?, made 1850-1924 (Wellcome No. B837).

Details

Category:
Heat
Object Number:
1997-1746
Materials:
box (wood), brass (copper, zinc alloy), cotton (fibre), felt, glass, leather, mercury, textile and wood (unidentified)
Measurements:
overall (case closed): 24 mm x 186 mm x 64 mm, 0.136kg
overall (case open): 16 mm x 186 mm x 220 mm, 0.136kg
type:
mercury thermometer
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • thermometer
credit:
Wellcome Trustees