https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13991549
A rat-catcher and his young assistant standing outside a doorway having their services refused by an old man: the rat-catcher holds a long stick with a cage on top of it containing rats, on his right shoulder sits a rat. Etching after Rembrandt van Rijn, c. 1632.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use