William Salmon. Line engraving by R. White, 1700, after himself. https://www.rawpixel.com/image/14006363/william-salmon-line-engraving-white-1700-after-himselfFree Image from public domain licenseFrancis Drake. Line engraving by P. Rothwell, 1812, after N. Drake. https://www.rawpixel.com/image/13988759/francis-drake-line-engraving-rothwell-1812-after-drakeFree Image from public domain licenseFree glass ball, Christmas light bokeh image, public domain holiday CC0 photo. https://www.rawpixel.com/image/5903314/photo-image-background-xmas-public-domainFree Image from public domain licenseAmsterdam streets transformed into ice rinks (1963). Free public domain CC0 photo. https://www.rawpixel.com/image/6015906/photo-image-face-public-domain-treeFree Image from public domain licensePerson climbing rock, leisure activity image. Free public domain CC0 photo. https://www.rawpixel.com/image/6202290/photo-image-public-domain-nature-personFree Image from public domain licenseFree golden retriever dog sitting in living room image, public domain animal CC0 photo. https://www.rawpixel.com/image/5914933/photo-image-background-public-domain-houseFree Image from public domain licenseJohann Georg Zimmermann. Stipple engraving by K. Mackenzie, 1808. https://www.rawpixel.com/image/13981125/johann-georg-zimmermann-stipple-engraving-mackenzie-1808Free Image from public domain licenseUnidentified young woman seated, in 3/4 profile by L A Atwood https://www.rawpixel.com/image/14307324/unidentified-young-woman-seated-34-profile-atwoodFree Image from public domain licenseRed dinosaur, historical creature background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298836/free-photo-image-dinosaur-t-rex-lizardFree Image from public domain licenseGottfried Moebius. Line engraving by J. Dürr after himself. https://www.rawpixel.com/image/13958654/gottfried-moebius-line-engraving-durr-after-himselfFree Image from public domain licenseThomas, Baron Dimsdale. Stipple engraving by W. Ridley, 1802. https://www.rawpixel.com/image/14015710/thomas-baron-dimsdale-stipple-engraving-ridley-1802Free Image from public domain licensePortrait of Colonel Abbott, Inspector General of Ordnance by Felice Beato https://www.rawpixel.com/image/14324453/portrait-colonel-abbott-inspector-general-ordnance-felice-beatoFree Image from public domain licenseEvening sky, shadow palm tree. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300731/free-photo-image-palm-trees-summer-abiesFree Image from public domain licenseUnidentified man with long, bushy muttonchops, seated in a chair with tassels by Alexander Gardner https://www.rawpixel.com/image/14307838/image-face-person-artFree Image from public domain licenseChristian Friedrich Elsner. Line engraving by J. H. Lips after C. Vernet. https://www.rawpixel.com/image/14020522/christian-friedrich-elsner-line-engraving-lips-after-vernetFree Image from public domain licensePortrait of an elderly man with white hair and muttonchop whiskers https://www.rawpixel.com/image/14285963/portrait-elderly-man-with-white-hair-and-muttonchop-whiskersFree Image from public domain licenseJohann Guenther [Guinter] van Andernach. Line engraving. https://www.rawpixel.com/image/14019089/johann-guenther-guinter-van-andernach-line-engravingFree Image from public domain licenseAdrianus Junius [Adriaen de Jonghe]. Line engraving by S. Furck, 1650. https://www.rawpixel.com/image/14019694/adrianus-junius-adriaen-jonghe-line-engraving-furck-1650Free Image from public domain licenseMoritz Hoffmann. Line engraving by P. Kilian after D. Preissler, 1664. https://www.rawpixel.com/image/14012697/moritz-hoffmann-line-engraving-kilian-after-preissler-1664Free Image from public domain licenseGeorg Noessler. Line engraving by P. Isselburg, 1622, after himself. https://www.rawpixel.com/image/13979724/georg-noessler-line-engraving-isselburg-1622-after-himselfFree Image from public domain licensePortrait of a Seated Young Woman Holding a Book by Jacob Byerly https://www.rawpixel.com/image/14274429/portrait-seated-young-woman-holding-book-jacob-byerlyFree Image from public domain licenseBaker [possibly Charles Baker, landscape artist] by Sarony and Co https://www.rawpixel.com/image/14308078/baker-possibly-charles-baker-landscape-artist-sarony-andFree Image from public domain licenseFree 2 German shepherd dog lying on grass field image, public domain animal CC0 photo. https://www.rawpixel.com/image/5912611/image-background-public-domain-dogFree Image from public domain licenseCarl Wilhelm Hermann Nothnagel. Photograph after Urban & Schwarzenberg. https://www.rawpixel.com/image/14020481/carl-wilhelm-hermann-nothnagel-photograph-after-urban-schwarzenbergFree Image from public domain licenseFlorida aquatic manatee living underwater. Original public domain image from Flickr https://www.rawpixel.com/image/4043762/photo-image-animal-public-domainFree Image from public domain licenseA woman is sitting on a chair making bobbin lace on a lace pillow. Engraving by A. H. Payne after G. Metsu. https://www.rawpixel.com/image/14018971/image-cat-face-personFree Image from public domain licenseGoing to work. The manager said, We have 150 workers beside the kids, September 1911. Photographer: Hine, Lewis. Original… https://www.rawpixel.com/image/8803132/photo-image-plant-person-grassFree Image from public domain licenseA man is carrying a knife grinder's wheel on his back. Watercolour painting. https://www.rawpixel.com/image/13954961/man-carrying-knife-grinders-wheel-his-back-watercolour-paintingFree Image from public domain licenseUnidentified Civil War victim in profile, seated by William H Bell https://www.rawpixel.com/image/14306626/unidentified-civil-war-victim-profile-seated-william-bellFree Image from public domain licenseFree black and white dog with red leash image, public domain animal CC0 photo. https://www.rawpixel.com/image/5912638/image-background-public-domain-dogFree Image from public domain license