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 licenseJohn Bull being bled while lying in bed and surrounded by four women; referring to Britain being drained of resources by… https://www.rawpixel.com/image/13962637/image-face-person-artFree Image from public domain licenseArabisch paard van Godert van der Capellen (1842 - 1861) by Abraham Hendrik Winter and Pieter Wilhelmus van de Weijer https://www.rawpixel.com/image/13765157/image-paper-horse-cartoonFree Image from public domain license