Portfolio Cover for a Collection of Caricatures and Satires, Anonymous, British, 19th century https://www.rawpixel.com/image/9331069/photo-image-paper-hand-artFree Image from public domain licenseYoung Man Holding a Rearing Horse by its Bridle, Frightened by a Barking Dog (before c. 1646) by Philips Wouwerman https://www.rawpixel.com/image/13787713/image-dog-paper-horseFree Image from public domain license