Vesivärein väritetty lehmä ja lyijykynällä piirretty lehmä, 1856, Werner Holmberg https://www.rawpixel.com/image/8861971/image-art-public-domain-illustrationFree Image from public domain licenseThe 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 licenseSurgeons and physicians of Guy's Hospital, Southwark, London, with views of the building. Colour lithograph by M. & N.… https://www.rawpixel.com/image/13964934/image-cartoon-face-personFree Image from public domain licenseRuiterstandbeeld van koning Hendrik IV op de Pont Neuf in Parijs, Frankrijk (1856 - 1890) by anonymous https://www.rawpixel.com/image/13756544/image-paper-horse-personFree Image from public domain licenseGezicht op de Arc de Triomphe in Parijs, Frankrijk (1856 - 1890) by anonymous https://www.rawpixel.com/image/13759370/gezicht-arc-triomphe-parijs-frankrijk-1856-1890-anonymousFree Image from public domain license