They can be scanned and confirmed for purity. Have heard of Mexican Libertads testing less than 99.9 percent pure, but I've not seen proof. Could be true, but I'd expect gold and silver to just plain go missing before the coins were struck.
They can be scanned and confirmed for purity. Have heard of Mexican Libertads testing less than 99.9 percent pure, but I've not seen proof.
Could be true, but I'd expect gold and silver to just plain go missing before the coins were struck.
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