Express Cover (1862) ephemera art. Original public domain image from The Smithsonian Institution. Digitally enhanced by… https://www.rawpixel.com/image/11493534/image-paper-art-vintageFree Image from public domain licenseExpress Cover (1862) ephemera art. Original public domain image from The Smithsonian Institution. Digitally enhanced by… https://www.rawpixel.com/image/11558647/image-paper-art-vintageFree Image from public domain licensePony Express map, by William Henry Jackson; likely from The Pony Express Goes Through (1935)Illustration: William Henry… https://www.rawpixel.com/image/7665551/image-art-vintage-airplaneFree Image from public domain license