Fifteen metal artifacts from coastal Guerrero were analyzed. Gold-, silver-, and copper-base alloys were found, and a deliberate manufacture of bronze is indicated. Metallographic studies show a high degree of sophistication in the art of cold-working metal.
No takes yet. Share an insight, caveat, or question.
Charles F. Brush (1962) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: