Figure 33, a hatchet, made of copper, hardened with tin. This was found in the grave of an Indian warrior, near Cuzco, and is the best made tool we found. Iron was not in use, and their tools were made of this mixed metal. They probably cut stone with it. Dozens of crowbars or chisels, 3 feet long and ¾ by ½ an inch thick, were found in the silver mines.
Fig. 34.
Figure 34 is a hatchet, of the same alloy as preceding figure.
Fig. 35.
Figure 35, metal head of a war-club. Some are also found of stone.