MILITARIA - SCIENCES - Jean-Baptiste MARTIN de BRETTES (1813 - Lot 184

Lot 184
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50 - 80 EUR
MILITARIA - SCIENCES - Jean-Baptiste MARTIN de BRETTES (1813 - Lot 184
MILITARIA - SCIENCES - Jean-Baptiste MARTIN de BRETTES (1813-188?, soldier and scientist, applied himself to the military sciences) / Autograph manuscript signed, 3 p. large in-4, given in Versailles on February 25, 1859, explaining the "mechanical arrangement for igniting a gunpowder charge by means of an induction spark", illustrated with an explanatory sketch.
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