Antique French PNHB Hair Hygrometer
SKU:PMA241101Rare antique hygrometer made by the famous French instrument company Naudet-Pertuis-Hulot (PNHB) circa 1890. Hair hygrometer movement and curved Fahrenheit thermometer on silvered dial. Brass case with decorative vent holes. Restored to working condition. Measures 4-1/4" diameter by 1-1/4" thick.
