Antique Holosteric Barometer by Naudet PNHB
SKU:PHMPHNBSmall antique Holosteric aneroid barometer by the French firm Naudet-Pertuis-Hulot (PNHB) circa 1890. Used as a travelling / portable instrument with its diminutive size measuring just 2-7/8" diameter. Fine quality exposed mechanism, beveled glass, and silvered dial. Great working and overall condition.