Skulls of bull and hippo, from an old book on osteology

File-size: 14870 x 9262 Pixel. 

This amazing vintage illustration depicts the skull of a bull on the left, and the skull of a hippopotamus on the right. The object between them is said to be the grinding tooth of an elephant. The illustration was found in a beautiful old book on anatomy and osteology, made in 1733. Here it was photographed, digitally processed and enlarged, so you can print it yourself and use it as poster or in your many projects.