Sir John Frederick William Herschel. Wood engraving, 1871. https://www.rawpixel.com/image/14012434/sir-john-frederick-william-herschel-wood-engraving-1871Free Image from public domain licenseUnidentified young man, standing by Charles DeForest Fredricks https://www.rawpixel.com/image/14306602/unidentified-young-man-standing-charles-deforest-fredricksFree Image from public domain licenseAbraham Cowley. Line engraving by W. Faithorne, 1668, after Sir P. Lely. https://www.rawpixel.com/image/14021890/abraham-cowley-line-engraving-faithorne-1668-after-sir-lelyFree Image from public domain licenseThe head and shoulders of a woman looking to her left and wearing curled hair-pieces attached to her natural hair. Engraving. https://www.rawpixel.com/image/13976731/image-face-person-artFree Image from public domain licenseTwee advocaten drukken elkaar de hand // Deux avocats: la poignée de main (1818 - 1879) by Honoré Daumier https://www.rawpixel.com/image/13792121/image-paper-face-handFree Image from public domain licenseA face expressing hatred or jealousy (left); a face with hair on end expressing despair. Engraving, c. 1760, after C. Le… https://www.rawpixel.com/image/13988816/image-paper-cartoon-faceFree Image from public domain licenseKerstkaart van Centrale Drukkerij N.V. (c. 1900 - c. 1960) by Centrale Drukkerij N V and Centrale Drukkerij N V https://www.rawpixel.com/image/13778148/image-paper-cartoon-faceFree Image from public domain licenseBearded man posing in long, dark coat and wool hat by William Carrick https://www.rawpixel.com/image/14308767/bearded-man-posing-long-dark-coat-and-wool-hat-william-carrickFree Image from public domain licenseA young woman holding up a casket on a dish as she looks back over her shoulder. Etching by J. Heath, 1815, after Titian. https://www.rawpixel.com/image/13973879/image-face-person-artFree Image from public domain licenseGui Crescent Fagon. Line engraving by E. Ficquet, 1747 and 1765, after H. Rigaud, 1694. https://www.rawpixel.com/image/13995643/image-face-person-artFree Image from public domain licenseAn unidentified man in an armchair. Photograph attributed to Maull & Polyblank. https://www.rawpixel.com/image/13972197/unidentified-man-armchair-photograph-attributed-maull-polyblankFree Image from public domain licenseWilliam W. Phelps by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14318728/william-phelps-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseThomas Hudson, an unfortunate. Stipple engraving by R. Cooper, 1821. https://www.rawpixel.com/image/14019509/thomas-hudson-unfortunate-stipple-engraving-cooper-1821Free Image from public domain licenseFamine in India: five emaciated children; a girl sitting and four boys lying on a mat. Photograph attributed to Willoughby… https://www.rawpixel.com/image/14006180/photo-image-face-person-artFree Image from public domain licenseThe Devil's Gate, Weber Canyon, Utah. Photograph, ca. 1880. https://www.rawpixel.com/image/13987148/the-devils-gate-weber-canyon-utah-photograph-ca-1880Free Image from public domain licenseSaint Mary (the Blessed Virgin) with the Christ Child. Etching after C. Schut. https://www.rawpixel.com/image/13957723/saint-mary-the-blessed-virgin-with-the-christ-child-etching-after-schutFree Image from public domain licenseMarie Pasteur, Madame Louis Pasteur. Photograph after A. Edelfelt, 1899. https://www.rawpixel.com/image/13967290/marie-pasteur-madame-louis-pasteur-photograph-after-edelfelt-1899Free Image from public domain licenseWalking mountain lion colored pencil drawing. Original public domain image from Flickr https://www.rawpixel.com/image/3399659/free-photo-image-animal-arts-canineFree Image from public domain licenseRichard Watson. Stipple engraving by Holl after G. Romney. https://www.rawpixel.com/image/13993012/richard-watson-stipple-engraving-holl-after-romneyFree Image from public domain licenseJean-Jacques Rousseau. Line engraving by A. de St Aubin after J. A. Houdon. https://www.rawpixel.com/image/14011559/jean-jacques-rousseau-line-engraving-aubin-after-houdonFree Image from public domain licenseA squirrel holding its hands in a garden path. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3301045/free-photo-image-animal-animals-images-pictures-blur-backgroundFree Image from public domain licenseGiovanni Battista Monteggia. Stipple engraving by L. Rados after B. Milesi. https://www.rawpixel.com/image/14010728/giovanni-battista-monteggia-stipple-engraving-rados-after-milesiFree Image from public domain licenseJames William Robertson. Mezzotint by J. B. Bird, ca. 1840, after J. Syme. https://www.rawpixel.com/image/13997284/james-william-robertson-mezzotint-bird-ca-1840-after-symeFree Image from public domain licenseRain drop on autumn leaf. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303318/free-photo-image-animals-images-pictures-bat-cc0Free Image from public domain licenseMary Kingdon Heslop. Photograph by the Press Photographic Agency. https://www.rawpixel.com/image/13965264/mary-kingdon-heslop-photograph-the-press-photographic-agencyFree Image from public domain licenseJoseph Barclay Pentland. Pencil drawing by C. E. Liverati, 1841. https://www.rawpixel.com/image/14014456/joseph-barclay-pentland-pencil-drawing-liverati-1841Free Image from public domain licenseJohn B. Thompson by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14318337/john-thompson-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseUnidentified man with moustache wearing a bow tie, standing, with one hand in pocket by Robert Jefferson Bingham https://www.rawpixel.com/image/14307733/image-face-hand-personFree Image from public domain licenseSaint Augustine of Hippo: a child compares its attempt to empty the sea with a spoon with Saint Augustine's attempts… https://www.rawpixel.com/image/13975497/image-cartoon-face-personFree Image from public domain licenseSir Astley Paston Cooper. Stipple engraving by S. Freeman, 1828. https://www.rawpixel.com/image/14011225/sir-astley-paston-cooper-stipple-engraving-freeman-1828Free Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14018558/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseDe dwerg Holloka Tschimitschko Buttiam Uran als huzaar, ca. 1710 (1705 - 1715) by Martin Engelbrecht https://www.rawpixel.com/image/13745985/image-paper-cartoon-faceFree Image from public domain license