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an old handwritten letter on a piece of paper with writing on it
Ader

113 - Jean-Baptiste SAY (1767–1832). Letter from the author, Paris…
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Estimate €300 - €400
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Description
Jean-Baptiste SAY (1767–1832). Letter from the author, Paris, 13 October 1822, to a colleague; 1 page, in-4. He recommends Claude Burdin to him, ‘an engineer at the École des Mines in Saint-Étienne […] He is the inventor of a new method for harnessing the power of waterfalls and would very much like the Academy of Sciences to take note of it; yet he cannot find a better patron than you’”… Enclosed is a letter, Paris, 22 February, to a friend (1/2 p., folio) concerning a mechanical carding machine that has been proposed to him; he would like to know whether this process could be put to good use…
See original version (French)
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About the sale Letters and Autograph Manuscripts – Part I
Auction location
Auction time 10/13/2026 at 2:00 PM
Pictures credits: Contact the Auction House
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