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Antique French PHBN Holosteric Aneroid Barometer Thermometer Brass c1900:
$199.00
The instrument features a blued steel pressure indicator, brass reference pointer, curved Fahrenheit thermometer and brass case with hanging ring. Maker's PHBN/PNHB-type mark appears on the instrument.
These marks are associated with the historic French Naudet/Pertuis-Hulot-Naudet barometer works. Naudet & Cie. was founded in Paris in 1860.
