Keywords: Edison2.jpg Thomas Edison with early version of phonograph Source Gallica Bibliothèque nationale de France http //gallica bnf fr/classique/images/Edison2 htm PD-old Phonographs Edison phonograph Photographs of Thomas Alva Edison Source: Gallica, Bibliothèque nationale de France. <a href="http://gallica.bnf.fr/classique/images/Edison2.htm" rel="nofollow">gallica.bnf.fr/classique/images/Edison2.htm</a> |