More than meets the eye
To some this may appear to be no more than a common stone; in actual fact, it is an Acheulean hand axe dating to between 500,000 and 300,000 years before present. This particular biface was found at Saint Acheul, Amiens, Somme, France.
Artifact courtesy & currently located at the Muséum de Toulouse, France. Photo taken by Didier Descouens.