Volta Laboratory and Bureau
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The Volta Laboratory and the Volta Bureau were created in Georgetown neighborhood of Washington, D.C., by Alexander Graham Bell.
Volta Bureau in 2008
The Volta Laboratory used by Bell from 1885 to 1922
Side of the Volta Bureau in 2022
A rare 1884 laboratory photo showing the experimental recording of voice patterns by a photographic process (Smithsonian photo No. 44312-E)
Phonograph
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A phonograph, later called a gramophone, and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of sound.
Thomas Edison with his second cylinder phonograph, photographed by Levin Corbin Handy in Washington, D.C., April 1878
Emile Berliner with the first disk gramophone he developed, in Hanover, Germany
An Edison Standard Phonograph that uses wax cylinders
Wood engraving published in The Illustrated Australian News, depicting a public demonstration of new technology at the Royal Society of Victoria (Melbourne, Australia) on 8 August 1878.