Hydrometer marked O or W at top
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Science Museum Group
© The Board of Trustees of the Science Museum
Hydrometer marked O or W at top, M at 32, 45 at bottom of stem scale, glass and mercury
Details
- Category:
- Meteorology
- Object Number:
- 1995-1819
- Materials:
- complete, glass, mercury, wax and paper (fibre product)
- Measurements:
-
overall: 23.7 cm
- type:
- hydrometer
- credit:
- Meteorological Office
