'On December 7, 1877 Edison demonstrated the phonograph to the editors of this journal'
Scientific American
EDISON & THE PHONOGRAPH: On December 7, 1877 Edison demonstrated the phonograph to the editors of this journal
On December 7, 1877 Edison demonstrated the phonograph to the editors of this journal
On December 7, 1877 Edison demonstrated the phonograph to the editors of this journal
EDISON & THE PHONOGRAPH
Scientific American
EDISON & THE PHONOGRAPH