JH Steward Surveying barometer
Portable, compensated aneroid barometer by JH Stewart of London.
Product details: JH Steward Surveying barometer | JH Steward | Altimeter | Survey |
This type of barometer with a range of 4000 feet and compensated at 50 degree Fahrenheit shows up in the catalogue for 1899 but is not mentioned in the 1885 catalogue. The company was located at West Strand between 1886 and 1928, dating this barometer between 1886 and 1899. Based on other instruments dated on the internet it seems closer to 1886 than it is to 1899. It is still in good working condition though discoloured.
JHS-baro
Data sheet
- Year
- c1886 - 1899
- Serialnumber
- 4328
- Type of use
- Survey
- graduation
- "Hg
ft - measuring range
- 25..31 "Hg
4000 ft - diameter scale in mm
- 35
- accuracy
- 20 ft
- Size instrument (Ø x h) in m
- 0.05 x 0.02
- weight instrument in kg
- 0.1
- country obtained from
- United Kingdom
3 other products in the same category:
Portable, compensated aneroid barometer by JH Stewart of London.
Product details: JH Steward Surveying barometer | JH Steward | Altimeter | Survey |