Portrait of the painter Thorald Læssøe (1816-1878) by Elisabeth Jerichau Baumann https://www.rawpixel.com/image/8924957/photo-image-face-art-vintageFree Image from public domain licenseThe art dealer and publisher Clement de Jonghe by Rembrandt van Rijn https://www.rawpixel.com/image/8924508/the-art-dealer-and-publisher-clement-jongheFree Image from public domain licenseM[ar]quis de Moustier, Diplomate francais (1817 - 1869) by Disdéri and Cie https://www.rawpixel.com/image/14309351/marquis-moustier-diplomate-francais-1817-1869-disderi-and-cieFree Image from public domain licenseThe hands of a child, showing deformity, particularly around the fingertips. Photograph by N. Goulton May. https://www.rawpixel.com/image/13994862/photo-image-face-hand-personFree Image from public domain licensePerson sitting on cliff, Grand Canyon, Arizona, free public domain travel CC0 photo. https://www.rawpixel.com/image/5927869/photo-image-public-domain-person-mountainFree Image from public domain licenseFree view of Westminster bridge and Big Ben in London image, public domain CC0 photo. https://www.rawpixel.com/image/5924003/photo-image-background-public-domain-skyFree Image from public domain licenseFree Santa Claus miniature image, public domain Christmas CC0 photo. https://www.rawpixel.com/image/5927537/photo-image-background-xmas-public-domainFree Image from public domain licenseAdrianus Junius [Adriaen de Jonghe]. Line engraving by W. I. Swanenburg, 1609. https://www.rawpixel.com/image/13974074/adrianus-junius-adriaen-jonghe-line-engraving-swanenburg-1609Free Image from public domain licenseAbraham Lincoln by Mathew Brady. Original public domain image from Flickr https://www.rawpixel.com/image/8799537/photo-image-face-vintage-public-domainFree Image from public domain licenseHermann Ludwig Ferdinand von Helmholtz. Photograph by W.J. Stacey . https://www.rawpixel.com/image/13977078/hermann-ludwig-ferdinand-von-helmholtz-photograph-wj-staceyFree Image from public domain licensePier'Antonio Micheli. Line engraving by G. Vascellini after B. Vaggelli. https://www.rawpixel.com/image/14007955/pierantonio-micheli-line-engraving-vascellini-after-vaggelliFree Image from public domain licenseHugh Downman. Stipple engraving by R. Woodman, 1809, after J. Downman, 1796. https://www.rawpixel.com/image/13987025/hugh-downman-stipple-engraving-woodman-1809-after-downman-1796Free Image from public domain licenseTwo etchings by Rembrandt: "Head of an Old Man in High Fur Cap: Bust" and "Sheet of Studies with Three Heads of an Old Man"… https://www.rawpixel.com/image/14315756/image-face-person-artFree Image from public domain licenseSir George Baker. Lithograph by G. P. Harding, 1837, after O. Humphry. https://www.rawpixel.com/image/14019262/sir-george-baker-lithograph-harding-1837-after-humphryFree Image from public domain licenseJoseph Dawson seated in a chair: portrait in a studio in San Salvador, the Bahamas. Photograph, 1855/1865. https://www.rawpixel.com/image/13977669/photo-image-face-person-artFree Image from public domain licenseJohn Taylor, mining engineer and geologist. Mezzotint by Charles Turner, 1831, after T. Lawrence. https://www.rawpixel.com/image/13995080/image-face-person-artFree Image from public domain licenseA dwarfish alchemist, caricatured because of the vanity of his obsession. Line engraving, c. 1720. https://www.rawpixel.com/image/13991372/image-cartoon-face-personFree Image from public domain licensePortret van Carel Baron van Boetzelaer (1794) by Charles Howard Hodges, Charles Howard Hodges and J B Riemen https://www.rawpixel.com/image/13779582/image-paper-face-frameFree 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 licenseJoseph Lister, 1st Baron Lister. Etching by A. W. Turnbull after R. A. Bickersteth. https://www.rawpixel.com/image/13985008/image-cartoon-face-personFree Image from public domain licenseLucas Schacht, wearing a skull cap. Line engraving after A. van Zylvelt. https://www.rawpixel.com/image/13984506/lucas-schacht-wearing-skull-cap-line-engraving-after-van-zylveltFree Image from public domain licenseA man standing by a fireplace, pulling a peculiar face after taking some medicine. Coloured etching after J. Gillray. https://www.rawpixel.com/image/13960388/image-cartoon-face-personFree Image from public domain licenseGeorg Daniel Coschwitz. Line engraving by J. Franck after P. Muszinsky. https://www.rawpixel.com/image/14000160/georg-daniel-coschwitz-line-engraving-franck-after-muszinskyFree Image from public domain licenseMarsilio Ficino. Line engraving by E. de Boulonnois, 1682, after P. Galle. https://www.rawpixel.com/image/13981839/marsilio-ficino-line-engraving-boulonnois-1682-after-galleFree Image from public domain license