The Anti-Slavery Society Convention, 1840, by Benjamin Robert Haydon (died 1846), given to the National Portrait Gallery… https://www.rawpixel.com/image/7666291/image-art-vintage-public-domainFree Image from public domain licenseUnfinished Pattern for the Official Coronation Medal of George IV https://www.rawpixel.com/image/12852115/unfinished-pattern-for-the-official-coronation-medal-georgeFree Image from public domain licenseFrançois Magendie. Line engraving after P. J. David d'Angers, 1838. https://www.rawpixel.com/image/14013116/francois-magendie-line-engraving-after-david-dangers-1838Free Image from public domain license