Prang's progressive studies in water-color painting, Part II (1890), vintage sailboat illustration by Will S. Robinson.… https://www.rawpixel.com/image/11067857/image-art-vintage-skyFree Image from public domain licensePortaal van de kathedraal van Straatsburg (c. 1900 - in or before 1911) by Neue Photographische Gesellschaft and Neue… https://www.rawpixel.com/image/13750438/image-church-art-patternFree Image from public domain licenseLeft arm of a child showing concurrent smallpox and vaccination, 10th day https://www.rawpixel.com/image/13977825/left-arm-child-showing-concurrent-smallpox-and-vaccination-10th-dayFree Image from public domain licenseVrouwelijk naakt gezien op de rug (c. 1891 - in or before 1896) by Georges Berteaux, Fillon and Heuse and Charles Wittmann https://www.rawpixel.com/image/13759481/image-paper-face-frameFree Image from public domain license