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Tonometer
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
Rudolph Koenig (1832-1901), the leading acoustic instrument maker of his era, attended school in the Prussian city of Konigsberg and apprenticed with a French violin maker before opening his own shop in Paris in the late 1850s. Many Americans learned of his work through his extensive display at the Centennial Exhibition held in Philadelphia in 1876.
National Museum of American History’s own descriptionSubjects
Credit lineTonometer. National Museum of American History. CC0.
