https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/3075682 Head of a Cow (1860–1870) by Samuel Colman. Original from The Smithsonian Institution. Digitally enhanced by rawpixel.

Head of a Cow (1860–1870) by Samuel Colman. Original from The Smithsonian Institution. Digitally enhanced by rawpixel.

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