This is a vintage Blue Yanagi Aneroid Barometer. This is a really fascinating piece. Barometers are used to measure slight changes in air pressure, which helps with predicting the weather. The aneroid barometer was invented in 1844 by Lucien Vidi, a French scientist. It is special in the sense that it does not involve liquid instead a small, flexible metal box called an aneroid cell.
*Proper working condition unknown, this product has not been tested*
Base Diameter: 9.5″
Weight: 5.6 lbs.
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