Thomas Edison at Ediphone convention. Charles Edison seated on left in front row. Nelson Durand seated to left of Thomas Edison and John Ott seated to the right.
<ul><li>Keywords: thomas edison; charles edison; family; west orange; laboratory complex; building 5; building 5 exterior; courtyard; phonograph; ediphone; dictating machine; john ott; commemorative; 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 9 August 1917
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