it's copper plating "shifting" -a fairly common occurrence.
Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
<< <i>it's copper plating "shifting" -a fairly common occurrence. >>
Fred, could you please elaborate for me? I'm unfamiliar with this, and am curious to why it only occurred on the mint mark. Is the process similar to shelf doubling?
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for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
<< <i>it's copper plating "shifting" -a fairly common occurrence. >>
sounds like a plan to me.
<< <i>it's copper plating "shifting" -a fairly common occurrence. >>
Fred, could you please elaborate for me? I'm unfamiliar with this, and am curious to why it only occurred on the mint mark. Is the process similar to shelf doubling?