An orange wool ball of yarn on a blanket. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297847/free-photo-image-yarn-wool-knittingFree Image from public domain licenseThe Repository of Arts, Literature, Commerce, Manufactures, Fashions, and Politics, 1st series, vol. 1 https://www.rawpixel.com/image/9330512/image-paper-arts-collageFree Image from public domain licenseIllustration of two domestic cats playing by Gottfried Mind (1768-1814). Original from Library of Congress. Digitally… https://www.rawpixel.com/image/429661/free-illustration-image-yarn-toy-vintageFree Image from public domain licenseCurd ball preventative : a safe and effectual preventative of wool or curd ball in sheep and lambs and hair balls in calves… https://www.rawpixel.com/image/13957584/image-paper-cow-bookFree Image from public domain licenseAn old woman tries to teach three children the alphabet, one child is crying, another wears a dunce cap, meanwhile two cats… https://www.rawpixel.com/image/14006780/image-cat-cartoon-faceFree Image from public domain license