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Alexander Graham Bell's Voice, ca. 1885

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Published on Apr 25, 2013

More info: http://newsdesk.si.edu/releases/hear-...

Technical details of the recording: http://bio16p.lbl.gov/volta-release-2...

National Museum of American History: http://americanhistory.si.edu/
Lawrence Berkeley National Laboratory: http://www.lbl.gov
Library of Congress: http://loc.gov

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