This is a high quality pocket barometer with 2 enamelled dial, the upper portion annotated in standard meteorological terms in French. The barometer scale goes from 57-80 torr or mm/mercury and the altimeter scale ranges from zero to 2400 meters adjusted by the rotating bezel with a pin. Body is made in [...]
Posts tagged antoine
1829 René Antoine Ferchault de Réaumur Thermometer Reaumur Scale Antique French
René antoine ferchault de réaumur. Missing the glass vial which contained merely diluted alcohol rather than mercury. Besides the missing glass vial it has no damages or anything beyond expected wear. Has scuffs, abrasions, and nicks along the wood. Pproximate measurements: 11.6″ (29.5 cm) tall x 6.5″ (16.5 cm) wide x 3.3 (8.5 cm) [...]