Author Archives: Ken Potter

Errors golden for collectors

From hard to buy gold errors to errors on popular collector coins, this year I had the privilege of seeing many of them at the American Numismatic Association World’s Fair Of Money Aug. 16-20 in suburban Chicago. For a greater part of each day, I spent considerable time sitting behind the Combined Organizations Of Numismatic Error Collectors of America’s club table explaining to folks what kind of errors and varieties they brought for review. I also scrounged the floor to find a few neat errors and varieties to shoot photographs of. Continue reading

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Doubled-ear 1988 cent found

Just when you’d think that everything that was major for a coin over 20 years old had been found, up pops a beautiful 1988 doubled-die cent that almost rivals that of the 1984 cent. The doubling on the 1988 is very strong on the earlobe. Continue reading

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Frosting error found on $50

The first example of a frosted “Freedom” proof 2007-W $50 platinum American Eagle was reported June 18 as the result of a March 15 article in Numismatic News. Based mainly on this report, which a reader found on the CONECA website that eventually linked him to the full report on the NumisMaster website, I can now state that this error, which is the third size, has finally been found. Continue reading

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Black-eyed Grant cause explained

The black-eyed Grant dollar coin mystery is solved. Reader Richard Stachowski sent in images of a 2011-P Ulysses S. Grant dollar for the June 21 issue of Numismatic News that presented us with a mystery that I thought might be a good-sized die break, or maybe die clash marks below Grant’s right eye. Continue reading

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Black-eyed Grant

Numismatic News reader Richard Stachowski sent in a 2011-P Ulysses S. Grant dollar that presents us with what appears to be perhaps a good-sized die break or maybe die clash marks below Grant’s right eye. Continue reading

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Misaligned dies struck ’76 half dollar

This article was originally printed in Numismatic News.  >> Subscribe today! Perhaps the most interesting coins to turn up at my table at the spring Michigan State Numismatic Society convention besides the proof 1962 half dollar I reported in the … Continue reading

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Close AM cent found by reader

A fourth specimen of the elusive 1992 Philadelphia Lincoln cent struck with a “Close AM” (of AMERICA) design style reverse has been reported to this author.
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Do you have third platinum error?

If you happened to buy a proof 2007-W half-ounce platinum American Eagle, now is the time to dig it out and see if it exhibits a die polishing error as the quarter-ounce and ounce coins do. Continue reading

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Gold found tripled

A tripled-die 1892-CC $10 gold piece has been identified by Numismatic Guaranty Corp. Continue reading

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Doubling but no doubled die

David S. Brenner of Delaware found what appeared to be a bona fide strong doubled die on a 2010 Grand Canyon 5-ounce silver bullion coin showing in images he sent to Numismatic News.  It wasn’t. Continue reading

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