Hello,
I was hoping someone here might know what the earliest 'secure' dates
are for artifacts of purified copper and the alloy arsenical (~1% to
6%) copper among the Chalcolithic Los Millares culture in southeastern
Iberia or perhaps refer me to the best reference source available.
I'm trying to determine how long the period of pure copper usage
"only" was before the advent of arsenical copper for a publication
I've been working on. I would appreciate any help very much.
Regards,
Sheppard Baird
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