Large brass cased aneroid barometer. 10 in.
Very unusual and exceptionally large 10-inch [25 cm] diameter 19th Century brass cased aneroid barometer. The well-engraved silvered brass dial, with exposed barometer movement, and bearing twin curved thermometers - alcohol Réaumur and Centigrade, and mercury Fahrenheit scales. The case profile is exaggeratedly dished. c1880