Stephen Jenner seated under a tree, wearing a top-hat, sketching. Pencil, ink and brown wash by S. Jenner. https://www.rawpixel.com/image/14008746/image-paper-cartoon-faceFree Image from public domain licenseMungo Park. Stipple engraving by F. W. Bollinger after H. Edridge. https://www.rawpixel.com/image/13985699/mungo-park-stipple-engraving-bollinger-after-edridgeFree Image from public domain licensePortret van Adr. Scharf Junior (1797) by Johannes Cornelis Mertens https://www.rawpixel.com/image/13791813/portret-van-adr-scharf-junior-1797-johannes-cornelis-mertensFree Image from public domain licenseHead and shoulders of a man in profile to the left wearing long hair-pieces attached to the back of his natural hair.… https://www.rawpixel.com/image/13994313/image-face-person-artFree Image from public domain licenseJean Casimir Félix Guyon. Reproduction of drawing by J. Veber. https://www.rawpixel.com/image/13981361/jean-casimir-felix-guyon-reproduction-drawing-veberFree Image from public domain licenseFranciscus Sylvius [Deleboe]. Line engraving, 1720, after C. van Dalen. https://www.rawpixel.com/image/13971067/franciscus-sylvius-deleboe-line-engraving-1720-after-van-dalenFree Image from public domain licenseSuper blood moon on black background. Original public domain image from Flickr https://www.rawpixel.com/image/3398110/free-photo-image-moon-adventure-astronomyFree Image from public domain licenseA tooth-drawer extracting a tooth from a grimacing patient. Coloured lithograph by D. Alexander after L. Boilly. https://www.rawpixel.com/image/13953929/image-cartoon-face-personFree Image from public domain licenseMartyrdom of Saint Sebastian. Engraving by J.B. Danguin after Raphael. https://www.rawpixel.com/image/14020487/martyrdom-saint-sebastian-engraving-jb-danguin-after-raphaelFree Image from public domain licensePáḣû-kûmaa ("Sunflower Edge") - Walker Lake Paviotso by Edward S Curtis https://www.rawpixel.com/image/14318057/pau-kumaa-sunflower-edge-walker-lake-paviotso-edward-curtisFree Image from public domain licenseP[rin]ce Pierre Bonaparte by André Adolphe Eugène Disdéri https://www.rawpixel.com/image/14310860/prince-pierre-bonaparte-andre-adolphe-eugene-disderiFree Image from public domain licenseJohn Hunter (1728-1793), surgeon and anatomist. Oil painting after Sir Joshua Reynolds. https://www.rawpixel.com/image/14000026/image-face-person-artFree Image from public domain licenseBeautiful beach sunset scenery photography. Free public domain CC0 image. https://www.rawpixel.com/image/6031480/photo-image-light-public-domain-pinkFree Image from public domain licensePatient who had a large epithelioma involving his mouth and cheek https://www.rawpixel.com/image/13978264/patient-who-had-large-epithelioma-involving-his-mouth-and-cheekFree Image from public domain licenseMessenger Monsey. Stipple engraving, 1804, after T. Forster. https://www.rawpixel.com/image/13989280/messenger-monsey-stipple-engraving-1804-after-forsterFree Image from public domain licenseBaksa, Formosa [Taiwan]. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13991971/photo-image-face-person-musicFree Image from public domain licenseBenjamin Franklin. Mezzotint by H. S. Sadd, 1847, after T. H. Matteson. https://www.rawpixel.com/image/13973664/benjamin-franklin-mezzotint-sadd-1847-after-mattesonFree Image from public domain licenseA bearded man walking the streets with his hat under his arm deeply engrossed in reading a book. Etching by J.T. Smith, 1815. https://www.rawpixel.com/image/13975442/image-paper-cartoon-faceFree Image from public domain licenseEdward Walsh. Line engraving by J. Kirkwood, 1834, after J. Comerford. https://www.rawpixel.com/image/14014619/edward-walsh-line-engraving-kirkwood-1834-after-comerfordFree Image from public domain licenseWilliam Thomson, Baron Kelvin. Photograph by T. & R. Annan & Sons. https://www.rawpixel.com/image/14017964/william-thomson-baron-kelvin-photograph-annan-sonsFree Image from public domain licenseSir William John Ritchie Simpson. Photograph by Douglas Scott. https://www.rawpixel.com/image/13999255/sir-william-john-ritchie-simpson-photograph-douglas-scottFree Image from public domain licensePeter Wells, surgeon to the Bristol Royal Infirmary. Oil painting by an English painter, before ca. 1786. https://www.rawpixel.com/image/14005808/image-face-person-artFree Image from public domain licenseEdward Jenner. Mezzotint by J. R. Smith, 1800, after himself. https://www.rawpixel.com/image/13994478/edward-jenner-mezzotint-smith-1800-after-himselfFree Image from public domain licensePortret van Jacques Stella (1646 - 1697) by Claudine Stella https://www.rawpixel.com/image/13782190/portret-van-jacques-stella-1646-1697-claudine-stellaFree Image from public domain licenseMourning woman, old tomb sculpture, Paris, France. Free public domain CC0 image. https://www.rawpixel.com/image/6040137/photo-image-public-domain-person-freeFree Image from public domain licenseSir Thomas Barlow (1845-1945), physician to the King. Oil painting by Harry Herman Salomon after a photograph. https://www.rawpixel.com/image/13973626/photo-image-face-person-artFree Image from public domain license"Sadness" from le Brun, Heads. Representing the various passions of the soul..., circa 1760 https://www.rawpixel.com/image/13990452/image-paper-cartoon-faceFree Image from public domain licenseSteps in Kosciuszko's Garden, West Point by George Kendall Warren https://www.rawpixel.com/image/14318095/steps-kosciuszkos-garden-west-point-george-kendall-warrenFree Image from public domain licensePortret van een jonge vrouw (1770) by Johannes Körnlein and Hendrick Goltzius https://www.rawpixel.com/image/13761649/portret-van-een-jonge-vrouw-1770-johannes-kornlein-and-hendrick-goltziusFree Image from public domain licenseRichard Sanders [Saunders]. Line engraving by T. Cross, 1653, after himself. https://www.rawpixel.com/image/13997939/richard-sanders-saunders-line-engraving-cross-1653-after-himselfFree Image from public domain licenseSaint Aquilinus of Milan as a protector against plague. Engraving, 17--. https://www.rawpixel.com/image/13978205/saint-aquilinus-milan-protector-against-plague-engraving-17Free Image from public domain licenseSamuel Arnold by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14317663/samuel-arnold-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseAn Indian bearer holding a large, richly decorated fan or banner, horizontally on his shoulder. Watercolour by an Indian… https://www.rawpixel.com/image/13958825/image-face-person-artFree Image from public domain licenseClose-up of a photographer taking a photo of a glass of wine with a camera.. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3337479/free-photo-image-camera-lens-people-wine-alcoholFree Image from public domain licenseFree close up of cow's head side view image, public domain animal CC0 photo. https://www.rawpixel.com/image/5926495/photo-image-background-public-domain-natureFree Image from public domain licenseGeorges Louis Leclerc, Comte de Buffon. Stipple engraving. https://www.rawpixel.com/image/13990062/georges-louis-leclerc-comte-buffon-stipple-engravingFree Image from public domain licenseA hand with cracked and diseased fingernails; and the upper half of a face with severe hair loss (missing brows and lashes).… https://www.rawpixel.com/image/13955440/image-face-hand-personFree Image from public domain license