Head of a donkey (1818) by Jean Bernard (1775-1883). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Donkey, Equus africanus asinus (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally… Free Image from public domain license 
Head of a donkey (1818) by Jean Bernard (1775-1883). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Collection of animals from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730-1774). Digitally… Free Image from public domain license