A triumphal procession: the devil leads the Pope as his captive towards hell. Engraving attributed to F. Barlow, 1680. https://www.rawpixel.com/image/13965609/image-paper-cartoon-faceFree Image from public domain licenseMathematicians and astronomers: twenty portraits. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/13989355/mathematicians-and-astronomers-twenty-portraits-engraving-jw-cook-1825Free Image from public domain license