A late 19th-Century mining aneroid barometer,
singed on the silvered-dial Keuffel & Esser Co. N.Y., the dial with adjustable "ascent/descent" cursor, magnifier and suspension loop -- 5in. (12.7cm.) dia.
A late 19th-Century mining aneroid barometer,
singed on the silvered-dial Keuffel & Esser Co. N.Y., the dial with adjustable "ascent/descent" cursor, magnifier and suspension loop -- 5in. (12.7cm.) dia.
