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which have certain characteristics that can be easily discerned with a little practice.
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how is it done? can you expand a little more?
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During my extensive research I found through exhaustive tests that the materials contained in genuine badges was a standardised alloy known as gilding-metal, which in tests, proved to be 89% copper (Cu) and an 11% Zinc (Zn) alloy, which absolutely, did not fluctuate in the genuine examples tested.
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How did the alloy's constituent metal percentages compare in the restrikes?