"Spear throwers came into use about 18,000 years ago in western Europe. They consist of a straight handle with a hook at one end. The bottom of the spear fits against the hook and the spear shaft and spear thrower handle are held together with the hook end by the shoulder. Launching the spear in this way sends it with more force and speed and across a longer distance than if it was simply thrown by hand.
"The hook ends of spear throwers are frequently decorated with an animal. This example from Montastruc shows a mammoth. It is the only known example which has a hole for an eye (which probably held an insert of bone or stone). The hook is also unusual because it is an ancient repair. The original hook carved from the antler broke off and was mended by cutting a slot on the back and inserting a bone or antler replacement. The mammoth's tusks appear on each side of the handle, most of which was broken off in ancient times."
The Mammoth Speer Thrower is preserved in the Christie Collection in the British Museum.