Why were pennies changed from all copper to copper plated zinc?

1 Answer
anor277
Feb 24, 2017

Several issues are important here: (i) the cost of the metal; and (ii) the ease of machining the metal into rounds to make coins........

Explanation:

And I must admit, I don't know much about either issue. Presumably, the inherent value of the metal in the coins is not an issue. We could add a third issue: the durability and lifetime of a copper coin versus that of the zinc plate. Again I have no data.

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