Friedrich Hoffmann II. Line engraving by G. Petit, 1739, after A. Pesne. https://www.rawpixel.com/image/13986393/friedrich-hoffmann-ii-line-engraving-petit-1739-after-pesneFree Image from public domain licenseFree laptop on desk image, public domain technology CC0 photo. https://www.rawpixel.com/image/5914170/photo-image-background-public-domain-technologyFree Image from public domain licenseWilliam Hyde Wollaston. Line engraving by W. Skelton, 1830, after J. Jackson. https://www.rawpixel.com/image/13992517/william-hyde-wollaston-line-engraving-skelton-1830-after-jacksonFree Image from public domain licenseRobert Morison. Line engraving by R. White, 1680, after W. Sonmans. https://www.rawpixel.com/image/13982437/robert-morison-line-engraving-white-1680-after-sonmansFree Image from public domain licenseJean Paul Marat. Lithograph by W. H. Egleton after J. Boze, 1793. https://www.rawpixel.com/image/14008832/jean-paul-marat-lithograph-egleton-after-boze-1793Free Image from public domain licenseJohn Wallis. Line engraving by D. Loggan, 1678, after himself. https://www.rawpixel.com/image/13983084/john-wallis-line-engraving-loggan-1678-after-himselfFree Image from public domain licenseCaulking bottom of ship with oakum and cotton to make water tight. by Underwood and Underwood https://www.rawpixel.com/image/14301002/image-face-people-waterFree Image from public domain licenseUnidentified man with moustache, in profile by Harry F Maneeley https://www.rawpixel.com/image/14306639/unidentified-man-with-moustache-profile-harry-maneeleyFree Image from public domain licenseAdrianus Junius [Adriaen de Jonghe]. Line engraving by C. de Visscher. https://www.rawpixel.com/image/13994531/adrianus-junius-adriaen-jonghe-line-engraving-visscherFree Image from public domain licenseA man wearing a coat and top hat is standing with his arms folded. Etching. https://www.rawpixel.com/image/14013290/man-wearing-coat-and-top-hat-standing-with-his-arms-folded-etchingFree Image from public domain licenseUnidentified man with moustache, seated by William Keith https://www.rawpixel.com/image/14284903/unidentified-man-with-moustache-seated-william-keithFree Image from public domain licenseSaint Gaetano holding the infant Christ. Stipple by P. Bernardi after M. Gandolfi, ca. 1800. https://www.rawpixel.com/image/14002903/image-cartoon-face-christFree Image from public domain licenseUnidentified little girl with hair up on both sides, seated, with hands clasped by Gabriel Blaise https://www.rawpixel.com/image/14307796/image-face-hands-personFree Image from public domain licenseJohann Caspar Lavater. Line engraving by J. H. Lips after himself. https://www.rawpixel.com/image/14012177/johann-caspar-lavater-line-engraving-lips-after-himselfFree Image from public domain licenseThe Virgin with the instruments of the Passion by Bisson Frères https://www.rawpixel.com/image/14315077/the-virgin-with-the-instruments-the-passion-bisson-freresFree Image from public domain licenseUnidentified woman wearing a dark dress, standing, in profile by Pierre Petit https://www.rawpixel.com/image/14308349/unidentified-woman-wearing-dark-dress-standing-profile-pierre-petitFree Image from public domain licenseSaint Augustine of Canterbury. Line engraving by A. Lommelin, 16--. https://www.rawpixel.com/image/14019517/saint-augustine-canterbury-line-engraving-lommelin-16Free Image from public domain licenseRichard Price. Stipple engraving by Louison, 1792, after himself. https://www.rawpixel.com/image/14014817/richard-price-stipple-engraving-louison-1792-after-himselfFree Image from public domain licenseSaint Mary (the Blessed Virgin) with the Christ Child and Saint John the Baptist. Lithograph by F.S. Hanfstaengl. https://www.rawpixel.com/image/14003024/image-cartoon-face-christFree Image from public domain licenseTwo boys in aristocratic costume releasing a bird which still has a string attached to its leg. Engraving. https://www.rawpixel.com/image/13993277/image-cartoon-face-personFree Image from public domain licenseSaint Chrysolius. Engraving by M. Baes (Basse, Bassius), 1619. https://www.rawpixel.com/image/13977675/saint-chrysolius-engraving-baes-basse-bassius-1619Free Image from public domain licenseSon of the Arapaho Chief Little Raven by William Stinson Soule https://www.rawpixel.com/image/14270781/son-the-arapaho-chief-little-raven-william-stinson-souleFree Image from public domain licenseUlisse Aldrovandi. Line engraving by G. Barni after F. Rosaspina. https://www.rawpixel.com/image/14015561/ulisse-aldrovandi-line-engraving-barni-after-rosaspinaFree Image from public domain license"Le Sueur", Statue by Aristide Husson, Decoration of the Louvre, Paris by Édouard Baldus https://www.rawpixel.com/image/14324481/image-face-person-artFree Image from public domain licenseJohann Nepomuk Fischer. Stipple engraving by W. C. Wrankmore after F. T. Mayer. https://www.rawpixel.com/image/14006181/johann-nepomuk-fischer-stipple-engraving-wrankmore-after-mayerFree Image from public domain licenseMan with moustache, printed in quasi-oval style by John James Abbott https://www.rawpixel.com/image/14305067/man-with-moustache-printed-quasi-oval-style-john-james-abbottFree Image from public domain licenseJeremy Bentham. Line engraving by C. Fox, 1838, after H. W. Pickersgill. https://www.rawpixel.com/image/13972713/jeremy-bentham-line-engraving-fox-1838-after-pickersgillFree Image from public domain licenseAntoine Petit. Stipple engraving by A. Tardieu after C.-L. Desrais. https://www.rawpixel.com/image/13986933/antoine-petit-stipple-engraving-tardieu-after-c-l-desraisFree Image from public domain licenseBaron Albrecht von Haller. Line engraving by H. Pfenninger, 1775. https://www.rawpixel.com/image/13978768/baron-albrecht-von-haller-line-engraving-pfenninger-1775Free Image from public domain licenseUnidentified little girl seated on rock, holding a fishing net basket by Jules Brechet https://www.rawpixel.com/image/14309151/image-face-person-woodFree Image from public domain licensePrincesse Louise [daughter of Queen Victoria] by Sergei Luvovich Levitsky https://www.rawpixel.com/image/14310256/princesse-louise-daughter-queen-victoria-sergei-luvovich-levitskyFree Image from public domain licenseJohn Flamsteed. Line engraving by Joseph Baker after T. Gibson, 1712. https://www.rawpixel.com/image/14002431/john-flamsteed-line-engraving-joseph-baker-after-gibson-1712Free Image from public domain licenseColin Maclaurin. Stipple engraving by S. Freeman after S. Percy. https://www.rawpixel.com/image/14002965/colin-maclaurin-stipple-engraving-freeman-after-percyFree Image from public domain licenseHarbor Seal (2016) by Chris Wellner. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3061680/free-photo-image-amazing-animal-artFree Image from public domain licenseGuy Patin. Line engraving by A. Masson, 1670, after himself. https://www.rawpixel.com/image/13984014/guy-patin-line-engraving-masson-1670-after-himselfFree Image from public domain licenseHenri Emmanuel Meurisse. Line engraving by C. Simonneau, 1693, after J. Vivien. https://www.rawpixel.com/image/14005101/henri-emmanuel-meurisse-line-engraving-simonneau-1693-after-vivienFree Image from public domain licenseA young man as a shepherd, designated as Abraham Cowley. Line engraving by J. Hall after C.F. Zincke after Sir P. Lely. https://www.rawpixel.com/image/13984120/image-face-person-artFree Image from public domain licenseUnidentified woman, printed in quasi-oval style by John James Abbott https://www.rawpixel.com/image/14304526/unidentified-woman-printed-quasi-oval-style-john-james-abbottFree Image from public domain licenseJohannes Jacob Seubert. Line engraving by B. Kilian, 1676, after T. Roos. https://www.rawpixel.com/image/14015417/johannes-jacob-seubert-line-engraving-kilian-1676-after-roosFree Image from public domain licenseAlfred Swaine Taylor. Photograph by Ernest Edwards, 1868. https://www.rawpixel.com/image/13986292/alfred-swaine-taylor-photograph-ernest-edwards-1868Free Image from public domain licensePortrait of a young lady, probably Cécile Devéria by Achille Devéria, Théodule Devéria and Octave Benoist https://www.rawpixel.com/image/14272652/photo-image-face-hands-personFree Image from public domain license