Standard mercury thermometer, by Ronketti, 1846
- maker:
- John George Harris Ronketti
Standard mercury Fahrenheit thermometer (15 to 103 degrees) with sprung ivory scale plate in glass sheath, by John George Harris Ronketti, 19 Leather Lane, Holborn, London, 1846
Details
- Category:
- Meteorology
- Object Number:
- 1995-1029
- Materials:
- ivory, brass (copper, zinc alloy), sealing wax, complete, glass and mercury
- Measurements:
-
overall: 445 mm 22 mm, .095kg
- type:
- mercury thermometer
- credit:
- Meteorological Office, Berkshire