[Edison, Thomas. (1847–1931)]: Sprechmaschine Broadside
1.584,25 €
[Edison, Thomas. "The talking machine is one of the most wonderful inventions of the age, and is a source of wonder and delight to young and old," the copy reads. Soundwaves captured by a mouthpiece causéd a stylus attached to a diaphragm to move up and down, making indentations on a sheet of tinfoil wrapped around a rotating drum. ].
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![Produktbild - [Drury Lane] [Bishop, Wood, Wesley, Oury]: Original 1831 Broadside](https://i.ebayimg.com/thumbs/images/g/YiIAAOSw6uZmr9qc/s-l140.jpg)
