Pre-Columbian Alloy Objects from Guerrero, Mexico

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Science  21 Dec 1962:
Vol. 138, Issue 3547, pp. 1336-1338
DOI: 10.1126/science.138.3547.1336


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.