Thomas Edison "and his speaking phonograph before the National Academy of Science," Charles Batchelor at right. Taken at the studio of Mathew Brady.
<ul><li>Keywords: thomas edison; charles batchelor; presidents; rutherford b. hayes; phonograph; Edison; Thomas A.; (EDIS Historical Photo Series Name)</li></ul>
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Unknown author<span style="display: none;">Unknown author</span></div>
Taken on 18 April 1878
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