Philosophers and writers: twenty portraits. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/13992312/philosophers-and-writers-twenty-portraits-engraving-jw-cook-1825Free Image from public domain licenseJacob de Castro-Sarmento. Mezzotint by R. Houston after R. E. Pine. https://www.rawpixel.com/image/14002908/jacob-castro-sarmento-mezzotint-houston-after-pineFree Image from public domain licenseDramatists and actors: twenty portraits. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/14010244/dramatists-and-actors-twenty-portraits-engraving-jw-cook-1825Free Image from public domain licenseGewelfdecoratie uit Pallazzo Barberini (1692 - 1762) by anonymous, Pietro da Cortona, Giovanni Giacomo de Rossi, Pauselijk… https://www.rawpixel.com/image/13777408/image-paper-cartoon-faceFree Image from public domain license