Thomas Edison, John Ott, seated left, and the Roach Reid group celebrating the anniversary of the Ediphone at the Ediphone convention.
<ul><li>Keywords: thomas edison; west orange; laboratory complex; building 5; building 5 exterior; courtyard; phonograph; ediphone; dictating machine; commemorative; john ott; 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 12 August 1918
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