Figure 5
From: The Origin of The Acheulean: The 1.7 Million-Year-Old Site of FLK West, Olduvai Gorge (Tanzania)

Bifacially-flaked basalt handaxe from FLKW L6.
Its dimensions are: 310 mm × 140 mm × 83 mm × 3660 g. Photo by F. Diez-Martín and D. Uribelarrea.