En 
Fr
A Louis XVI period carved gilt wood barometer - thermometer. Its top is decorated with the atributs of gardening surrounded by a laurel leaves wreath. Interesting historical references for the thermometer. Original gilding. The mechanism was revised.
The barometer is signed "Mson de l'Ingr Chevallier /15 place du Pont de Neuf à Paris".
France.
18th century.
After Torricelli (1608 - 1647) and Réaumur (1683 - 1757).
