The evolution of a monkey into a boy and a balloon into a cage for a parrot; representing Darwin's theories. Wood engraving… https://www.rawpixel.com/image/13992387/image-paper-cartoon-faceFree Image from public domain licenseTwo Malagasy women carrying waterpots on their heads; the woman on the left also carries a child on her back. Halftone. https://www.rawpixel.com/image/13985288/image-plant-people-treeFree Image from public domain licenseFour commedia dell'arte characters are raising a balloon by winching it up with ropes. Process print. https://www.rawpixel.com/image/13970684/image-paper-cartoon-personFree Image from public domain license