https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13952165
Three men ride through the sky on black, red and white lions (colours of the alchemical process); beneath, men lay sprawled among dismembered limbs. Coloured etching after etching, ca. 17th century.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use