Discoloured areas of skin on the torso of a boy suffering from leucoderma (vitiligo). Chromolithograph by E. Burgess… https://www.rawpixel.com/image/13960037/image-face-person-artFree Image from public domain licenseThin stray dog sitting on a road. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300804/free-photo-image-dog-animal-animals-images-picturesFree Image from public domain licenseHong Kong. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13970130/hong-kong-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseRené-Antoine Ferchault de Réaumur. Line engraving by P. Simonneau after A. S. Belle. https://www.rawpixel.com/image/13986846/image-cartoon-face-personFree Image from public domain licenseClement C. Clay by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14318723/clement-clay-james-earle-mcclees-and-julian-vannersonFree Image from public domain licensePaolo de Bernardis da Uderzo is attacked by a man who stabs his throat with a dagger: he recovers through the intercession… https://www.rawpixel.com/image/14000502/image-cartoon-face-personFree Image from public domain licensePortret van Philipp Melanchton (1530) by Monogrammist IB 16e eeuw, Georg Pencz and Lucas Cranach I https://www.rawpixel.com/image/13779084/image-paper-cartoon-faceFree Image from public domain licenseBeach, Playa del Peñón del Cuervo, Spain. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3301287/free-photo-image-time-animal-apparelFree Image from public domain licenseJames Johnstone, junior. Stipple engraving by J. Ross after T. Burney after J. Russell. https://www.rawpixel.com/image/14009262/image-cartoon-face-personFree Image from public domain licenseSon altesse impériale le Prince Napoléon by André Adolphe Eugène Disdéri https://www.rawpixel.com/image/14314630/son-altesse-imperiale-prince-napoleon-andre-adolphe-eugene-disderiFree Image from public domain licenseAnne Biget [soeur Marthe]. Mezzotint by P.C. Cocqueret, 1815, after Biget. https://www.rawpixel.com/image/14000305/anne-biget-soeur-marthe-mezzotint-pc-cocqueret-1815-after-bigetFree Image from public domain licensePortret van de dichter Walt Whitman (1887) by George C Cox and anonymous https://www.rawpixel.com/image/13754818/portret-van-dichter-walt-whitman-1887-george-cox-and-anonymousFree Image from public domain licenseSir Morell Mackenzie (1837-1892), otorhinolaryngologist. Oil painting by Harry Herman Salomon after a photograph. https://www.rawpixel.com/image/14002998/photo-image-face-person-artFree Image from public domain licenseRobert Rainey Pennington. Mezzotint by W. Walker, 1849, after F. R. Say. https://www.rawpixel.com/image/13988824/robert-rainey-pennington-mezzotint-walker-1849-after-sayFree Image from public domain licensePortrait of Diederik van Hogendorp (1625-1702) (c. 1690) by anonymous https://www.rawpixel.com/image/13796359/portrait-diederik-van-hogendorp-1625-1702-c-1690-anonymousFree Image from public domain licenseH. Begga van Andenne (1615 - 1676) by Theodor Matham, Jan van Eyck and Theodor Matham https://www.rawpixel.com/image/13776886/image-paper-face-personFree Image from public domain licenseJohn Milner Fothergill. Lithograph by [R. E. H.] after Barraud & Jerrard. https://www.rawpixel.com/image/14006690/john-milner-fothergill-lithograph-r-h-after-barraud-jerrardFree Image from public domain licenseIsaac Parker (1702-55), Merchant of Middelburg (1734) by Philip van Dijk https://www.rawpixel.com/image/13744809/isaac-parker-1702-55-merchant-middelburg-1734-philip-van-dijkFree Image from public domain licenseBernhard Siegfried Albinus. Engraving by J. Houbraken after C. de Moor. https://www.rawpixel.com/image/14013444/bernhard-siegfried-albinus-engraving-houbraken-after-moorFree Image from public domain licenseJoseph Hume. Lithograph by G. B. Black, 1851, after J. E. Mayall. https://www.rawpixel.com/image/13991365/joseph-hume-lithograph-black-1851-after-mayallFree Image from public domain licenseFig. 58 by Guillaume Benjamin Duchenne and Adrien Alban Tournachon https://www.rawpixel.com/image/14316991/fig-guillaume-benjamin-duchenne-and-adrien-alban-tournachonFree Image from public domain licenseFree variety of vegetables on wooden table photo, public domain food CC0 photo https://www.rawpixel.com/image/5910473/image-background-public-domain-plantFree Image from public domain licenseSelf-portrait with a daguerreotype of Geneva by Jean Gabriel Eynard https://www.rawpixel.com/image/14271264/self-portrait-with-daguerreotype-geneva-jean-gabriel-eynardFree Image from public domain licenseAndromache (1797 - 1828) by Alexis François Girard, Gédéon Reverdin, Paulin Guérin and Gédéon Reverdin https://www.rawpixel.com/image/13785749/image-paper-face-personFree Image from public domain licenseGezicht op een tuin aan het water in Japan (c. 1890 - in or before 1903) by anonymous https://www.rawpixel.com/image/13758072/photo-image-paper-plant-personFree Image from public domain licenseA prostitute with her name and charges. Etching by a follower of Wenceslaus Hollar, 180- . https://www.rawpixel.com/image/13997485/image-face-person-artFree Image from public domain license[Frances, Artie and Tom Crowell and Susan Macdowell in Avondale, PA.]. by Thomas Eakins https://www.rawpixel.com/image/14263478/photo-image-face-plant-personFree Image from public domain licenseStaande man met drie rollen onder de arm (1700 - 1800) by anonymous https://www.rawpixel.com/image/13782779/staande-man-met-drie-rollen-onder-arm-1700-1800-anonymousFree Image from public domain licenseA man designated as Dr William Hunter. Oil painting by Sir Joshua Reynolds. https://www.rawpixel.com/image/13951671/man-designated-william-hunter-oil-painting-sir-joshua-reynoldsFree Image from public domain licenseChristoph Wilhelm Hufeland. Lithograph after J. F. A. Tischbein, 1798. https://www.rawpixel.com/image/14015493/christoph-wilhelm-hufeland-lithograph-after-tischbein-1798Free Image from public domain licenseUnidentified young man wearing a top hat, seated by T Lake https://www.rawpixel.com/image/14308880/unidentified-young-man-wearing-top-hat-seated-lakeFree Image from public domain licensePietro Pezzi. Line engraving by G. Bozza after Girolama Bozza after Roberti. https://www.rawpixel.com/image/14007533/pietro-pezzi-line-engraving-bozza-after-girolama-bozza-after-robertiFree Image from public domain licenseWillem Frederik (1772-1843), erfprins van Oranje-Nassau. Later koning Willem I. Genaamd 'Het mantelportret' (1805 - 1810) by… https://www.rawpixel.com/image/13742733/image-face-person-artFree Image from public domain licenseYoung man paints the back of a wooden chair by Arnold Eagle https://www.rawpixel.com/image/14266553/young-man-paints-the-back-wooden-chair-arnold-eagleFree Image from public domain licenseBenjamin Franklin. Colour aquatint by P. M. Alix, 1791, after C. P. A. van Loo. https://www.rawpixel.com/image/13993923/benjamin-franklin-colour-aquatint-alix-1791-after-van-looFree Image from public domain licensePortret van Pieter Cornelisz. van der Morsch (1741 - 1820) by Abraham Delfos and anonymous https://www.rawpixel.com/image/13782782/image-paper-face-personFree Image from public domain licenseWilliam Hyde Wollaston. Lithograph by R. J. Lane, 1827, after Sir F. Chantrey. https://www.rawpixel.com/image/14021811/william-hyde-wollaston-lithograph-lane-1827-after-sir-chantreyFree Image from public domain licenseAnthonie Gerardus van der Hout (1820-92) (1880 - 1892) by Jac van Looij https://www.rawpixel.com/image/13743793/anthonie-gerardus-van-der-hout-1820-92-1880-1892-jac-van-looijFree Image from public domain licenseLudwig Wilhelm, Ritter von Mauthner. Lithograph by J. Kriehuber, 1846. https://www.rawpixel.com/image/14006234/ludwig-wilhelm-ritter-von-mauthner-lithograph-kriehuber-1846Free Image from public domain licenseWilliam Whiteman Carlton Topley. Process print after Hills & Saunders, Cambridge, 1938. https://www.rawpixel.com/image/13958845/image-face-people-clothingFree Image from public domain licenseChrist with the Holy Ghost, Saint Peter the Apostle and Saint Paul the Apostle. Etching by W. Unger after G.B. Crespi. https://www.rawpixel.com/image/14021610/image-angel-cartoon-faceFree Image from public domain license