 from Scientific American, Dec. 22, 1877 |
 from Scientific American, Dec. 22, 1877 |
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from Scientific American, Dec. 22, 1877 |
from Scientific American, Dec. 22, 1877 |
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 29.001/55 from Edison NHS |
 29.110/13 from Edison NHS |
 29.110/16 from Edison NHS |
 from Smithsonian NMAH |
see additional photos from the Edison National Historic Site), and early recording devices from the Smithsonian National Museum of American History.
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The photos on these pages are used with permission of the Smithsonian National Museum of American History. They may not be reproduced or distributed without written permission of the NMAH. |