The "Comte d'Artois" balloon with propellers built by chemical factory directors Leonard Alban and Vallet of Javel, August 1785. Woodblock engraving from Louis Figuier's "Les Merveilles de la Science: Aerostats" (Marvels of Science: Air Balloons), Furne, Jouvet et Cie, Paris, 1868.

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Size: 4867px × 5255px
Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
Model Released: No

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