https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/429659 Descent of the balloon Neptune in the cliffs of Cap Gris-Nez baloon trip in Calais by Albert Tissandier. Original from…

Descent of the balloon Neptune in the cliffs of Cap Gris-Nez baloon trip in Calais by Albert Tissandier. Original from Library of Congress. Digitally enhanced by rawpixel.

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