What is the surface of XXX made of?
Gebel el-Arak Knife
The Gebel el-Arak Knife is an ivory and flint knife dating from the Naqada II d period of Egyptian prehistory, starting circa 3450 BC. The knife was purchased in 1914 in Cairo by Georges Aaron Bénédite for the Louvre, where it is now on display in the Sully wing, room 20.
flint