PIANO DE SILEX - 2
The geological piano of Honore Baudre employs a series of selected stones, each of which emits a different note when struck
Hi-Res image available upon request
Picture No
10112415
Media ID
48898222
Credit
Mary Evans Picture Library
Source
Engraving by an unnamed artist in L'Illustration' 17 July 1901
Date
1901
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Emits Employs Geological Honore Selected Silex Struck Unconventional
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