Drawing of pig https://www.rawpixel.com/image/562486/pig-shade-drawingView licenseIllustration of heads of domestic and wild animals and full figure of a dog, pig, horse, cows and a cock; a working farmer… https://www.rawpixel.com/image/322823/free-illustration-image-deer-pig-cowFree Image from public domain licenseVintage pigs illustration vector https://www.rawpixel.com/image/572852/pigs-vintage-drawingView licenseBoar's Head (c. 1941) by Joseph Goldberg. Original from The National Gallery of Art. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3393137/free-illustration-image-pig-animal-antiqueFree Image from public domain licenseA wild boar or warthog, a horse, a squirrel and a lizard . Cut-out engravings pasted onto paper, 16--. https://www.rawpixel.com/image/13952111/image-dog-paper-horseFree Image from public domain licenseA musteloid telagon. Coloured etching by J. C. M. Barreau after A.C. Vauthier. https://www.rawpixel.com/image/13955087/musteloid-telagon-coloured-etching-barreau-after-ac-vauthierFree Image from public domain licensePig, vintage animal illustration. Remastered by rawpixel https://www.rawpixel.com/image/8730696/image-art-pink-vintage-illustrationView licenseDennis's Lincolnshire pig powders : cure all diseases of pigs & poultry... / John W. Dennis. https://www.rawpixel.com/image/13965471/image-paper-cartoon-artFree Image from public domain licenseDromedary camel, wildlife illustration. Remixed by rawpixel. https://www.rawpixel.com/image/10208983/image-watercolour-vintage-illustrationView licenseAbove, a mule's head; below, a mule's rear and front. Etching. https://www.rawpixel.com/image/13977274/above-mules-head-below-mules-rear-and-front-etchingFree Image from public domain licenseBosdieren (1628 - 1679) by anonymous, Adriaen Collaert and Nicolaes Visscher I https://www.rawpixel.com/image/13779368/bosdieren-1628-1679-anonymous-adriaen-collaert-and-nicolaes-visscherFree Image from public domain licenseDennis's Lincolnshire pig powders : cure all diseases of pigs & poultry... / John W. Dennis. https://www.rawpixel.com/image/14018384/image-background-paper-newspaperFree Image from public domain licenseGezicht op de Hofvijver te Den Haag (1742 - 1801) by Georg Balthasar Probst, anonymous and Isaac van Haastert https://www.rawpixel.com/image/13763224/image-dog-paper-horseFree Image from public domain licenseKrokodillenvangst (after 1598 - 1628) by Jan Collaert II, Jan van der Straet, Philips Galle and Cornelis Kiliaan https://www.rawpixel.com/image/13764771/image-paper-face-personFree Image from public domain license