François Vincent Raspail. Wood engraving by E. Montigneul. https://www.rawpixel.com/image/14017443/francois-vincent-raspail-wood-engraving-montigneulFree Image from public domain licenseSaint Dominic Guzman. Engraving after C. Cort, 1573, after B. Spranger. https://www.rawpixel.com/image/13989319/saint-dominic-guzman-engraving-after-cort-1573-after-sprangerFree Image from public domain licenseThe Christ Child and Saint John the Baptist in a landscape. Gouache. https://www.rawpixel.com/image/13953604/the-christ-child-and-saint-john-the-baptist-landscape-gouacheFree Image from public domain licenseHippocrates. Stipple engraving by M. Bovi, 1796, after A. Day. https://www.rawpixel.com/image/13978465/hippocrates-stipple-engraving-bovi-1796-after-dayFree Image from public domain licenseUnidentified Civil War solding wearing a cap, in quasi-Napoleanic stance by Charles DeForest Fredricks https://www.rawpixel.com/image/14307033/image-face-person-baseballFree Image from public domain licensePortrait of a Woman in Dress with Neck Tie by Louis Fleckenstein https://www.rawpixel.com/image/14283112/portrait-woman-dress-with-neck-tie-louis-fleckensteinFree Image from public domain licenseJean-Baptiste Bouillaud. Lithograph by C. Bornemann after P.L. Pierson. https://www.rawpixel.com/image/13993785/jean-baptiste-bouillaud-lithograph-bornemann-after-pl-piersonFree Image from public domain licenseSamuel Clarke. Line engraving by J. Houbraken, 1756, after T. Gibson. https://www.rawpixel.com/image/13983035/samuel-clarke-line-engraving-houbraken-1756-after-gibsonFree Image from public domain licensePearl Crescent Butterfly on Butterfly Weed flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202234/photo-image-flower-public-domain-natureFree Image from public domain licenseMusquetier de la Garde Hollandaise (17e Siècle). sous Prince Maurice (1840 - 1850) by Elias Spanier https://www.rawpixel.com/image/13755184/image-paper-cartoon-faceFree Image from public domain licenseSaint Mary (the Blessed Virgin) with the Christ Child. Line engraving. https://www.rawpixel.com/image/13954943/saint-mary-the-blessed-virgin-with-the-christ-child-line-engravingFree Image from public domain licenseAuguste Nélaton. Wood engraving by W.B. after Ch. Reutlinger. https://www.rawpixel.com/image/13981405/auguste-nelaton-wood-engraving-wb-after-ch-reutlingerFree Image from public domain licenseSergeant der O.I. Artillerie (1835 - 1850) by Albertus Verhoesen and Johannes Paulus Houtman https://www.rawpixel.com/image/13748550/image-paper-face-personFree Image from public domain licenseSpiro, A Greek from the Ionian Islands by Dr William Robertson https://www.rawpixel.com/image/14312476/spiro-greek-from-the-ionian-islands-william-robertsonFree Image from public domain licenseMan in Vest and Felt Hat Standing by Corner of Building by Doris Ulmann https://www.rawpixel.com/image/14277124/man-vest-and-felt-hat-standing-corner-building-doris-ulmannFree Image from public domain licenseHiking up the Sepulcher Mountain Trail by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4226105/photo-image-public-domain-nature-peopleFree Image from public domain licenseFrançois Guénault. Line engraving by R. Nanteuil after himself, 1664. https://www.rawpixel.com/image/13974441/francois-guenault-line-engraving-nanteuil-after-himself-1664Free Image from public domain licenseA woman holding a tobacco pipe and a drinking glass. Mezzotint by B. Lens. https://www.rawpixel.com/image/14007021/woman-holding-tobacco-pipe-and-drinking-glass-mezzotint-lensFree Image from public domain licenseThe face of a man in a state of anger. Engraving by J. Tinney, ca. 1730/1740, after C. Le Brun. https://www.rawpixel.com/image/13974050/image-paper-cartoon-faceFree Image from public domain licenseJoseph Townsend. Stipple engraving by W. Holl, 1805, after J. Opie, 1780. https://www.rawpixel.com/image/13999173/joseph-townsend-stipple-engraving-holl-1805-after-opie-1780Free Image from public domain licenseJohn Taylor, mining engineer and geologist. Lithograph after T. Lawrence. https://www.rawpixel.com/image/13978238/john-taylor-mining-engineer-and-geologist-lithograph-after-lawrenceFree Image from public domain licenseGiovanni Aldini. Stipple engraving by L. Schiavonetti after P. Violet, 1803. https://www.rawpixel.com/image/13975948/giovanni-aldini-stipple-engraving-schiavonetti-after-violet-1803Free 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 licenseFrederik Ruysch. Line engraving after J. Wandelaar, 1723. https://www.rawpixel.com/image/13992876/frederik-ruysch-line-engraving-after-wandelaar-1723Free Image from public domain licenseUnidentified young woman in 3/4 profile, printed in vignette-style by Hastings and White and Fisher https://www.rawpixel.com/image/14306999/image-face-person-artFree Image from public domain licenseCarl Ludwig Wildenow. Stipple engraving by A. Tardieu after himself. https://www.rawpixel.com/image/13983002/carl-ludwig-wildenow-stipple-engraving-tardieu-after-himselfFree Image from public domain licenseThe life of John Collins Warren, M.D. : comp. chiefly from his autobiography and journals / by Edward Warren. https://www.rawpixel.com/image/14007332/image-paper-cartoon-faceFree Image from public domain licensePortret van een onbekende jonge man in roeiboot (1855 - 1900) by anonymous https://www.rawpixel.com/image/13759527/portret-van-een-onbekende-jonge-man-roeiboot-1855-1900-anonymousFree Image from public domain licenseMassaccio, Painted by Himself by Caldesi and Montecchi and Robert Howlett https://www.rawpixel.com/image/14314318/massaccio-painted-himself-caldesi-and-montecchi-and-robert-howlettFree Image from public domain licenseJohn Gregory. Stipple engraving by J. Beugo, 1787, after F. Cotes, 1764. https://www.rawpixel.com/image/13973754/john-gregory-stipple-engraving-beugo-1787-after-cotes-1764Free Image from public domain licenseJohn Locke. Stipple engraving by J. Posselwhite after Sir G. Kneller, 1704. https://www.rawpixel.com/image/14003189/john-locke-stipple-engraving-posselwhite-after-sir-kneller-1704Free Image from public domain licenseJames Johnstone. Steel engraving by G.T. Doo after W.T. Roden, 1868. https://www.rawpixel.com/image/14001870/james-johnstone-steel-engraving-gt-doo-after-wt-roden-1868Free Image from public domain licenseHenry Wilson by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14316828/henry-wilson-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseFrederick Prince of Wales. Engraving by J. Houbraken after C. Boit, ca. 1727. https://www.rawpixel.com/image/13979055/frederick-prince-wales-engraving-houbraken-after-boit-ca-1727Free Image from public domain licenseFather Dominic à Jesu Maria of the Carmelite order. Coloured engraving by F.X. Jungwierth. https://www.rawpixel.com/image/13961876/image-face-person-crossFree Image from public domain licenseEdward Jenner. Wood engraving by W. Brown after J. R. Smith, 1800. https://www.rawpixel.com/image/14000900/edward-jenner-wood-engraving-brown-after-smith-1800Free Image from public domain licensePortraits, memoirs, and characters, of remarkable persons, from the Revolution in 1688 to the end of the reign of George II.… https://www.rawpixel.com/image/13981354/image-face-persons-artFree Image from public domain licenseJohn Brown [Bruno]. Stipple engraving by J. Thomson after J. Donaldson. https://www.rawpixel.com/image/13972577/john-brown-bruno-stipple-engraving-thomson-after-donaldsonFree Image from public domain licenseA rating having his hair cut by another seaman below deck. Chromolithograph after G. Morton. https://www.rawpixel.com/image/13951890/image-face-person-artFree Image from public domain licenseWoman and child stand in front of a house by Frank Meadow Sutcliffe https://www.rawpixel.com/image/14322225/woman-and-child-stand-front-house-frank-meadow-sutcliffeFree Image from public domain license