https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/429742 Drainage Calavera by Mexican political printmaker, Jose Guadalupe Posada (1852-1913). Original from Library of Congress.…

Drainage Calavera by Mexican political printmaker, Jose Guadalupe Posada (1852-1913). Original from Library of Congress. Digitally enhanced by rawpixel.

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