Antique Holosteric Barometer Brass Cased by Pertuis Naudet Hulot Bourgeois PNHB
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Condition Fine with marks indicative of both age and usage. Case is naturally tarnished. We have left the tarnishing on. You may wish to polish this away depending upon preference. Broken glass on viewing window. Bag test shows the barometer to be responding fine to pressure change.
The Antique Holosteric Barometer Brass Cased by Pertuis Naudet Hulot Bourgeois PNHB is a historical instrument used for measuring atmospheric pressure, particularly in meteorological applications.
Crafted with a brass case, this barometer features a diameter of approximately 122mm and a height of 50mm. The dial is prominently marked with the term "HOLOSTERIC BAROMETER," indicating its type of measurement. Additionally, the dial provides readings such as "STORMY," "Much Rain," "Rain," "CHANGE," "Fair," "Set Fair," and "VERY DRY," aiding in weather forecasting based on pressure changes.
Manufactured by Pertuis, Naudet, Hulot & Bourgeois, the company traces its origins back to 1859 when it commenced operations in Paris. Initially established by individuals whose first names are unknown, the company operated under the name Naudet & Cie starting in 1860. Their distinctive trademark, "PNHB," derived from the initials of their surnames, became synonymous with quality barometers. The company was headquartered at 4, Place Thorigny, Paris.
Despite changes in ownership and management over the years, the reputation for producing high-quality instruments persisted. This particular barometer exhibits signs of age and usage, evident in the natural tarnishing of its brass case. While the viewing window may have suffered breakage, a bag test confirms its functionality in responding to pressure changes.
Owners may choose to retain the tarnishing for historical authenticity or opt to polish it away according to personal preference. Overall, this antique barometer serves as a testament to the craftsmanship and enduring utility of precision meteorological instruments from the past.
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