La Vierge aux Rocheres, by L. da Vinci by Caldesi and Montecchi https://www.rawpixel.com/image/14315774/vierge-aux-rocheres-vinci-caldesi-and-montecchiFree Image from public domain licenseFrederik II de Grote (1712-86), koning van Pruisen (1750 - 1770) by anonymous https://www.rawpixel.com/image/13793529/frederik-grote-1712-86-koning-van-pruisen-1750-1770-anonymousFree Image from public domain licenseUnidentified older man with long moustache by Edward J Woolsey https://www.rawpixel.com/image/14306659/unidentified-older-man-with-long-moustache-edward-woolseyFree Image from public domain licenseUnidentified little girl standing in a chair, holding a pail with a ship on it by Armand https://www.rawpixel.com/image/14307004/image-face-people-baseballFree Image from public domain licenseJohann Caspar Lavater. Coloured stipple engraving by J. Chapman, 1813. https://www.rawpixel.com/image/13984302/johann-caspar-lavater-coloured-stipple-engraving-chapman-1813Free Image from public domain licenseAntonio Nunès Ribeiro Sanchès. Line engraving by G. Levillain, 1785, after Moitte. https://www.rawpixel.com/image/13973245/image-cartoon-face-personFree Image from public domain licenseUnidentified man with whitish beard, without a moustache by Deloss Barnum https://www.rawpixel.com/image/14287455/unidentified-man-with-whitish-beard-without-moustache-deloss-barnumFree Image from public domain licenseGeorg Noessler. Line engraving by P. Isselburg, 1622, after himself. https://www.rawpixel.com/image/13994667/georg-noessler-line-engraving-isselburg-1622-after-himselfFree Image from public domain licenseUnidentified balding elderly man seated, holding a pince-nez https://www.rawpixel.com/image/14306482/unidentified-balding-elderly-man-seated-holding-pince-nezFree Image from public domain licenseJoseph, Ritter von Scherer. Line engraving by B. Höfel after K.P. Göbel. https://www.rawpixel.com/image/13982287/joseph-ritter-von-scherer-line-engraving-hofel-after-kp-gobelFree Image from public domain licenseSir Robert Charles MacWatt. Photograph by Bassano Ltd, 1930. https://www.rawpixel.com/image/14002854/sir-robert-charles-macwatt-photograph-bassano-ltd-1930Free Image from public domain licenseHenry John Temple, III (1784 - 1865), Viscount Palmusten by Camille Silvy https://www.rawpixel.com/image/14311413/henry-john-temple-iii-1784-1865-viscount-palmusten-camille-silvyFree Image from public domain licenseJohn Wallis. Line engraving by M. Burghers, 1699, after D. Loggan, 1678. https://www.rawpixel.com/image/13988483/john-wallis-line-engraving-burghers-1699-after-loggan-1678Free Image from public domain licenseWilliam Ingham. Line engraving by J. Burnet after J. Ramsay, 1817. https://www.rawpixel.com/image/13979943/william-ingham-line-engraving-burnet-after-ramsay-1817Free Image from public domain licenseA philosopher giving an astronomical lecture on an orrery. Mezzotint by W. Pether after J. Wright, ca. 1780. https://www.rawpixel.com/image/13999082/image-face-person-artFree Image from public domain licenseJeremy Bentham. Stipple engraving by J. Posselwhite after J. Watts. https://www.rawpixel.com/image/13975150/jeremy-bentham-stipple-engraving-posselwhite-after-wattsFree Image from public domain licenseHand holding a camera. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286103/free-photo-image-hand-abstract-phone-lightFree Image from public domain licenseSamuel Clarke. Stipple engraving by Nixon after T. Gibson. https://www.rawpixel.com/image/13985564/samuel-clarke-stipple-engraving-nixon-after-gibsonFree Image from public domain licenseWilliam Brodum, a medical practitioner and medicine vendor. Stipple engraving by E.A. Ezekiel after G. Barry. https://www.rawpixel.com/image/14020932/image-cartoon-face-personFree Image from public domain licenseAn alchemist in his laboratory. Oil painting by a follower of David Teniers the younger. https://www.rawpixel.com/image/13997321/image-frame-person-artFree Image from public domain licenseSir William Scovell Savory. Photograph by G. Jerrard, 1881. https://www.rawpixel.com/image/14021902/sir-william-scovell-savory-photograph-jerrard-1881Free Image from public domain licenseAureolus Theophrastus Bombastus von Hohenheim [Paracelsus]. Stipple engraving by W. Ridley after Q. Matsys. https://www.rawpixel.com/image/13998794/image-face-person-artFree Image from public domain licenseRichard Brinsley] Sheridan. (copy of a painting by Stroeffer and Kirchner and Friedrich Bruckmann https://www.rawpixel.com/image/14308223/image-face-person-artFree Image from public domain licenseA number of twisted metal tubes rising up towards the sky next to a tall building. Original public domain image from… https://www.rawpixel.com/image/3303867/free-photo-image-perspective-line-art-architectureFree Image from public domain licenseCarolus Linnaeus. Line engraving by J.B. Compagnie after F. Bonneville. https://www.rawpixel.com/image/14011576/carolus-linnaeus-line-engraving-jb-compagnie-after-bonnevilleFree Image from public domain licensePortret van Nicolas de Verdun (1622) by Claude Mellan, Michel Lasne and Corbin https://www.rawpixel.com/image/13783259/portret-van-nicolas-verdun-1622-claude-mellan-michel-lasne-and-corbinFree Image from public domain licenseDu Page County Centennial--Centennial of the photo, and art exhibit--Clarendon Hills Buczak. https://www.rawpixel.com/image/8650518/image-art-vintage-public-domainFree Image from public domain licenseAn Egyptian philosopher teaching his pupil the art of iconology. Etching. https://www.rawpixel.com/image/13974052/egyptian-philosopher-teaching-his-pupil-the-art-iconology-etchingFree Image from public domain licenseMan with moustache, holding a top hat, standing, posed on railing in studio by Antoine Claudet https://www.rawpixel.com/image/14305233/image-face-person-artFree Image from public domain licenseFree close up common basilisk lizard's head image, public domain animal CC0 photo. https://www.rawpixel.com/image/5909903/image-background-public-domain-freeFree Image from public domain licenseUnidentified young girl in curls, standing, holding a hat, resting her other arm on a table with books on top by Joseph Brown https://www.rawpixel.com/image/14307783/image-face-person-booksFree Image from public domain licensePortrait of an Elderly Man in Hat Holding Some Tools by Oscar Gustave Rejlander https://www.rawpixel.com/image/14284144/portrait-elderly-man-hat-holding-some-tools-oscar-gustave-rejlanderFree Image from public domain licenseRobert John Thornton. Stipple engraving by W. Ridley, 1803, after J. Russell. https://www.rawpixel.com/image/14002758/robert-john-thornton-stipple-engraving-ridley-1803-after-russellFree Image from public domain license