File:View of a Skull III.jpg

View of a Skull (c. 1489) is a drawing by Leonardo da Vinci. Source: http://www.drawingsofleonardo.org https://creativecommons.org/publicdomain/mark/1

This image is a derivative work of the following images: File:Bison_skull_pile.jpg licensed with PD-US 2011-02-09T23:51:10Z Kaldari 5689x4448 (2473795

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the copyright holder of this work, hereby publish it under the following license: English Wikimedia username: Nicolas Perrault III URL: https://commons