https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13953084
Three leeches in the role of physicians attend a grasshopper in the role of the patient and propose diet and bloodletting. Coloured lithograph after J.J. Grandville, ca. 1832.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use