https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/2368477 Wolkenstudies (cloud study) by Joseph August Knip (1777–1847). Original from The Rijksmuseum. Digitally enhanced by…

Wolkenstudies (cloud study) by Joseph August Knip (1777–1847). Original from The Rijksmuseum. Digitally enhanced by rawpixel.

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