Maimonides
Emperor
The Incas had abundant supplies of copper and tin and were accomplished bronze metallurgists. The Tarascan State in central Mexico also worked bronze. Pre-Hispanic bronze artifacts have been found in excavations of several Aztec cities but it is likely that these came from Tarascan.
Wow. I knew that Native Americans were hammering copper & gold into decorative objects, but I didn't know they used tin or knew how to make bronze or casted metal. I've never seen any examples of Precolumbian bronze or read any early Spanish accounts of it. I wonder why they didn't use bronze for weapons & armor. The written record is clear that they were using obsidian blades when the Spanish encountered them. Is this information from archaeology or the written record?
Back on the subject of coins, I wonder why they used beads, shells & trade goods for currency instead of metal.