The U.S. Weather Bureau transferred this aneroid barograph to the Smithsonian in 1955. The case is metal and glass. The base is marked “BREVÉTÉS SGDG / RF / PARIS” and “43974Y.” Inside the case is a mercury-in-glass thermometer on an ivory plate marked “THERMOMETER” and “FAHRENHEIT.” Felix Richard began making aneroid barometers in Paris in 1845. His son, Jules Richard, took over the business in 1876. The firm began trading as Richard Frères in 1882, and became Jules Richard in 1891.
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