https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/466804 Shell (1921) by Julie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel.

Shell (1921) by Julie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel.

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