The corrosion resistance of copper and its alloys means that coins and
tokens are found which date back hundreds and sometimes thousands of
years. Archaeologists use coins to help date excavation sites. The
copper alloys used for coins can retain information such as names and
dates, even after being buried in the soil for generations.
This is a new resource from the Copper Development Association.You
can download and save the resource as a PDF file.
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Copper Alloys in Coinage.pdf
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