Thomas Edison and Mina Edison at the AT&amp;T Palace of Liberal Arts, exposition grounds in San Francisco, listening by telephone to a Diamond Disc Phonograph being played in West Orange.
<ul><li>Keywords: expositions; thomas edison; mina miller edison; phonograph; diamond disc; california; family; Edison; Thomas A.; (EDIS Historical Photo Series Name)</li></ul>
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span></div>
Taken on 21 October 1915
<a rel="nofollow" class="external text" href="https://npgallery.nps.gov/">NPGallery</a>