Kater-type hygrometer in leather case, by Thomas Jones, 21 Oxenden Street, London, 1811-1814. Presented to the Meteorological Office Museum by The Royal Meteorological Society in 1978.
- brass (copper, zinc alloy), glass, leather, paper (fibre product), silk and steel (metal)
overall (in case): 65 mm 50 mm, .125kg
- furnishing and equipment
- measuring device - instrument
- Meteorological Office