Picture No | 10112414 |
Date | 1885 |
Description | Piano De Silex |
Details |
Honore Baudre's geological piano uses a series of selected stones, each of which emits a different note when struck.
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Source | Engraving by Poyet in La Nature, 1885 Vol 2 Page 33 |
Credit | Mary Evans Picture Library |
Restrictions |
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