Author Archives: Ken Potter

Half shows error

Strike-through errors are among a number of interesting errors that turned up recently. Continue reading

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$100,000 find

First there was one, then three and now there are four 1969-S Doubled Die Obverse No. 1 cents that have been found by collectors within just the past three years. Continue reading

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B&M sells errors

Mint errors highlighted a Bowers & Merena’s auction held in conjunction with the Whitman Coin & Collectibles Baltimore Summer Expo June 18-19. Continue reading

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Rare cent count reaches three

Of all the errors and varieties I featured last year, arguably the most important, at least in terms of rarity and value, was a second known specimen of the elusive 1992 Philadelphia-Mint Lincoln cent struck with a “Close AM” design style reverse. Continue reading

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Odd type of error appears on edge

Gary Kelly of Michigan has come up with 2008-D Martin Van Buren Presidential dollar with a pretty rare error type known as the Dropped Letter or Dropped Design. Continue reading

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Alaska quarter die flow lines dramatic

A.G. Meredith of North Carolina sent in a 2008-P Alaska state quarter with a rather prominent example of an otherwise common effect seen on a large percentage of coins struck at the United States. Continue reading

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Problems on edge damage or errors?

Garrett Reich of Michigan sent in several 2009-P William Henry Harrison Presidential dollars exhibiting what I call Shifted Edge Lettering. Continue reading

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No longer unique: Second Close AM 1992 cent found

A second known specimen of the elusive 1992 Philadelphia minted Lincoln cent struck with a “Close AM” (of AMERICA) design style reverse has been reported. Continue reading

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Professional Life cents show flaws

After a major lapse in time, I am again getting reports on major die crack varieties found on proof coins. The latest two are both on the Professional Life Lincoln cent reverse and were found in August. Continue reading

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Four more doubled cents identified

Collectors have continued to find more Formative Years doubled-die varieties to a point that variety coin attributers are approaching or are have exceeded as many as 60 listings for the reverse alone.
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