Portrait. American Folk art. Little boy wearing blue dress, white pantaloons and black shoes holding a watch on a long chain… https://www.rawpixel.com/image/7651125/image-flowers-vintage-artFree Image from public domain licenseFifteen French doctors wearing aprons and holding various instruments. Colour lithograph by A. Barrère, ca. 1903. https://www.rawpixel.com/image/13959298/image-cartoon-people-bookFree Image from public domain licensePrince Alfred, Duke of Edinburgh, introduces his new wife, Princess Maria Alexandrovna of Russia, to the British people.… https://www.rawpixel.com/image/14006563/image-cartoon-face-personFree Image from public domain licenseThe Eye, Ear, Nose and Throat colloquium in Vienna, October 1905. Photograph, October 1905 . https://www.rawpixel.com/image/14008048/photo-image-person-eye-clothingFree Image from public domain license