PART V. Planchet Errors:
Improper Alloy Mix:
Poorly Mixed Alloy
Definition:
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The images above of a 1938(P) Lincoln cent show a poor mixture of the copper, tin, zinc alloy. The result is mottled bands of discoloration on both the obverse and reverse of the coin. This planchet anomaly is not that uncommon in the early Lincoln cent series and is referred to as “wood grain” texture or “woodies”. |
