Conversion. Copper and brass processing. Copper tube is made either by extrusion or piercing. In the piercing method… https://www.rawpixel.com/image/12307142/image-person-technology-factoryFree Image from public domain licenseVintage European style skull engraving from Annals of Winchcombe and Sudeley by Emma Dent (1877). Original from the British… https://www.rawpixel.com/image/556477/vintage-human-skull-illustrationFree Image from public domain licenseVintage Victorian style skull engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556428/vintage-human-skull-illustrationFree Image from public domain licenseStudy for Geometry in “The Sorbonne" (1886–1887) by Pierre Puvis de Chavannes. Original from The MET museum.… https://www.rawpixel.com/image/2498700/free-illustration-image-anatomy-man-male-figureFree Image from public domain licenseNaked couple in a sexual act. The Embrace (1900–1910) by Auguste Rodin. Original from The MET museum. Digitally… https://www.rawpixel.com/image/2515699/free-illustration-image-sex-couple-nude-menFree Image from public domain licenseThe Triumph of Amphitrite (1550–1580) by Luca Cambiaso. Original from The MET museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2509511/free-illustration-image-sensual-decoration-amphitriteFree Image from public domain licenseNaked man, vintage nude illustration. Study of a Figure by Alphonse Legros. Original from The MET museum. Digitally enhanced… https://www.rawpixel.com/image/2515697/free-illustration-image-man-nudes-vintage-posterFree Image from public domain licenseHand pointing from Illustrated Penny Tales. From The Strand Library. No. 1-10 published by Tid-Bits Office (1894). Original… https://www.rawpixel.com/image/573205/hand-pointing-vintage-drawingFree Image from public domain licenseIndian tiger attacking a man from The American Metropolis From Knickerbocker Days To The Present Time, New York City Life In… https://www.rawpixel.com/image/573137/tiger-attacking-manFree Image from public domain license1789, 1820–1914, 1892, 1893, 19th, abuse, accompanying, according, admiral, after, against, aground, aha, all… https://www.rawpixel.com/image/8324930/image-art-vintage-public-domainFree Image from public domain licenseLaocoön and his sons by Johan Teyler (1648 -1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/515195/free-illustration-image-renaissance-god-greekFree Image from public domain licenseGorilla, female facial angle 51 from Adventures in the Great Forest of Equatorial Africa and the Country of the Dwarfs.. An… https://www.rawpixel.com/image/573328/gorilla-skull-vintage-drawingFree Image from public domain licenseEvening prayers from Verses For Grannie. Suggested By The Children... illustrated by Dorothea A.H. Drew (1899). Original… https://www.rawpixel.com/image/572753/child-praying-angelFree Image from public domain licenseNew canon of the proportions of human body from Histoire de l'art égyptien (1878) by Émile Prisse d'Avennes.… https://www.rawpixel.com/image/421099/free-illustration-image-emile-grid-egyptFree Image from public domain licenseA naked child by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/515170/free-illustration-image-angel-baby-vintage-clouds-greeceFree Image from public domain licenseNaked men (1688-1698) by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/514870/free-illustration-image-naked-man-17th-centuryFree Image from public domain licenseEgyptian lifestyle illustration from Histoire de l'art égyptien (1878) by Émile Prisse d'Avennes. Original… https://www.rawpixel.com/image/421101/free-illustration-image-egyptian-emile-egyptFree Image from public domain licenseClassical sculpture of a man by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/515388/free-illustration-image-greek-statue-sculptureFree Image from public domain licenseVenus and Adonis by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/515076/free-illustration-image-adonis-venus-renaissanceFree Image from public domain licenseNaked man (1688-1698) by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/514952/free-illustration-image-fit-nude-man-sketch-bodyFree Image from public domain licensePages from the Illustrated Book Strange Tales of the Crescent Moon by Katsushika Hokusai https://www.rawpixel.com/image/11931354/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931351/image-face-paper-plantFree Image from public domain licenseSouvenir Print from Otsu: Benkei with Weaponry and a Demon with a Samisen by Kitagawa Utamaro https://www.rawpixel.com/image/11922684/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931548/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931349/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931558/image-background-paper-plantFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931360/image-background-face-paperFree Image from public domain licenseMexican boy living in corral, Robstown, Texas. Notice the crude wall papering by Russell Lee https://www.rawpixel.com/image/12174340/image-face-hand-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931358/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931355/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931348/image-background-face-paperFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931545/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931369/image-face-paper-plantFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931543/image-background-face-paperFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin' by Katsushika Hokusai https://www.rawpixel.com/image/11931356/image-face-cow-personFree Image from public domain licenseTwo Single Pages from the New Illustrated Edition of 'Tales of the Water Margin’ and another by Katsushika Hokusai https://www.rawpixel.com/image/11931564/image-face-person-artFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11932668/image-face-paper-personFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931423/image-face-paper-plantFree Image from public domain licensePages from the New Illustrated Edition of 'Tales of the Water Margin’ by Katsushika Hokusai https://www.rawpixel.com/image/11931554/image-face-person-artFree Image from public domain license[Untitled photo, possibly related to: Primitive American art, work of local artist in store, La Forge, Missouri] by Russell… https://www.rawpixel.com/image/12167689/image-dog-plant-personFree Image from public domain license[Untitled photo, possibly related to: Display in Agricultural Hall, state fair, Donaldsonville, Louisiana] by Russell Lee https://www.rawpixel.com/image/12166422/image-plant-person-artFree Image from public domain licenseSon of agricultural day laborer sitting in window of his home. Muskogee County, Oklahoma by Russell Lee https://www.rawpixel.com/image/12174092/image-face-person-artFree Image from public domain license[Untitled photo, possibly related to: Display in Agricultural Hall, state fair, Donaldsonville, Louisiana] by Russell Lee https://www.rawpixel.com/image/12166484/image-plant-person-artFree Image from public domain licenseHercules Assisting Atlas by Claude Mellan. Original from The MET museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2501673/free-illustration-image-god-atlas-herculesFree Image from public domain licenseIn dank en vriendschap aan Roland Holst (1910) by Jac Jongert. Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2563533/free-illustration-image-anatomy-hen-male-nudesFree Image from public domain licenseNaked man posing sexually. Male Nude (1880) by Gustav Klimt. Original from The Art Institute of Chicago. Digitally enhanced… https://www.rawpixel.com/image/2468821/free-illustration-image-klimt-naked-man-nude-maleFree Image from public domain licenseNaked Greek man sculpture, Terracotta statuette of the Diadoumenos (youth tying a fillet around his head) (1st century… https://www.rawpixel.com/image/2544995/free-illustration-image-sculpture-statue-greekFree Image from public domain licenseNaked man, vintage nude illustration. Standing Male Nude (1810–1820) by Pierre Paul Prud'hon. Original from The MET… https://www.rawpixel.com/image/2515781/free-illustration-image-penis-nude-man-male-nudesFree Image from public domain licenseNaked man and woman, Apollo and Diana (ca. 1503–1505) by Jacopo de' Barbari. Original from The MET Museum. Digitally… https://www.rawpixel.com/image/2586442/free-illustration-image-apollo-diana-old-paperFree Image from public domain licenseNaked man posing sexually. Standing Male Nude from Behind (1893) by Otto Greiner. Original from The National Gallery of Art.… https://www.rawpixel.com/image/2467782/free-illustration-image-male-nudes-anatomy-man-bodyFree Image from public domain licenseNaked woman showing her bottom. Standing Female Nude, seen from the Rear by Johan Braakensiek. Original from The… https://www.rawpixel.com/image/2458094/free-illustration-image-nude-men-anatomy-nakedFree Image from public domain licenseVerheffing van de mens (1898) by Johannes Josephus Aarts. Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2512055/free-illustration-image-vintage-poster-anatomy-woman-man-nudeFree Image from public domain licenseMarble statue of a youth (1st century A.D.). Original from The MET Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2552960/free-illustration-image-sculpture-statue-manFree Image from public domain licenseBukkende naakte man (1924) by Reijer Stolk. Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2564260/free-illustration-image-reijer-stolk-male-nudeFree Image from public domain licenseNaked man leaning to the side, vintage nude illustration. Double-sided Sheet of Figural Studies by Giacomo Zoboli. Original… https://www.rawpixel.com/image/2515778/free-illustration-image-male-nudes-black-and-white-body-sketchFree Image from public domain licenseMan muscle sketch. Original from The MET Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2573174/free-illustration-image-paper-naked-man-male-nudesFree Image from public domain licenseThe Singing of Love (1870) by Simeon Solomon. Original from The Birmingham Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2586300/free-illustration-image-male-nude-poster-singingFree Image from public domain licenseMale Nude Standing, Separ (1858) by Daniel Huntington. Original from The Smithsonian. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2478560/free-illustration-image-foot-vintageFree Image from public domain license