File:PSM V07 D463 The pyrophone.jpg

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Description The pyrophone. "The mechanisms that allowed two flames to unite or diverge to produce a musical note." Wade, John (2016). The Ingenious Victorians: Weird and Wonderful Ideas from the Age of Innovation, p.136. Pen and Sword. ISBN 9781473849044.
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Source The Pyrophone. In: Popular Science Monthly, Volume 7, August 1875, p. 444–453: p. 447.
Author Henri Dunant (1828–1910)
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