Copper Brass: Taken in War: Often in Great Quantities

…saying, “Return to your homes with your great wealth, with immense herds of livestock, with silver, gold, bronze, iron, and very many clothes. Divide with your brothers the spoil of your enemies.”

And from Betah and Berothai, cities of Hadadezer, King David took a large amount of bronze.

Moreover, the Chaldeans broke up the bronze pillars and stands and the bronze Sea in the house of the LORD, and they carried the bronze to Babylon. …