148 (Footnote) Cuzco, Quito, the cities of Ollantaytambu, 149 (Footnote) Machupiccu 150 (Footnote) and Pachacamac 151 (Footnote) for the mining of rare metals, including tin for use in making bronze. Metals were the property of "the gods, of course. A great variety of entrepreneurial mining was done on Earth at that time due to the war between the "Old Empire" force and The Domain. These miners did carve a few sculptures of themselves. They are seen wearing mining helmets. The Ponce stela sculpture in the sunken courtyard of the Kalasasaya temple is a crude rendering of a stone worker using an electronic, light-wave emitting stone cutter and carving tools, held in a holster.