BAROMETER THERMOMETER
France, 19th century
Wood, mahogany veneer, brass and glass
H.: 104; L.: 13.5 cm
Mercury column barometer with siphon centered between two comparative thermometers: the first with alcohol has two scales: Centigrade and Réaumur; the second, on the Fahrenheit and Réaumur scales, is mercury.
It is complete with its tube and its mercury bowl protected by gilded brass.
Metal plaque marked on the upper part: “Charpentier Optician Passage Choiseul 40 in Paris”.
Text and photos © FCP CORIDON
Ref. : 4529