<i>Anatomia del corpo humano</i> by <a href="//commons.wikimedia.org/wiki/Juan_Valverde_de_Amusco" title="Juan Valverde de Amusco">Juan Valverde de Amusco</a>. A flayed cadaver holds his skin in one hand and a dissecting knife in the other. The skin’s distorted face has the appearance of a ghost or a cloud, suggesting that spirit has been separated from, or peeled off of, the fleshy inner man.
<a href="//commons.wikimedia.org/wiki/Juan_Valverde_de_Amusco" title="Juan Valverde de Amusco">Juan Valverde de Amusco</a>
Rome, 1559.
Copperplate engraving. National Library of Medicine, Rome.