Antique Naudet PNHB Holosteric Barometer with Dual Thermometers

Magnificent antique Holosteric aneroid barometer by the French firm Naudet-Pertuis-Hulot (PNHB) circa 1890. This is the finest antique aneroid barometer produced and this one is in fantastic condition. Marked "U.S. Standard" on silvered dial. Large and highly polished brass case. Features dual thermometers; Fahrenheit and Reaumur/Centigrade. Excellent working and overall condition. Measures 8-1/4" diameter by 2-1/4" deep.