Author Archives: Ken Potter

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 →

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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Jim Dawson of Florida sent in a 2009-P Puerto Rico quarter that shows multiple die chips and die breaks on the reverse.  Continue reading →

Floyd Howze of North Carolina sent in the first report to Numismatic News of a 2009-P Guam Territorial quarter with an obverse doubled die. Continue reading →

Richard Giedroyc sent in photos to Numismatic News of a 2009 Formative Years (Rail Splitter) Lincoln cent that shows a rather pronounced die crack that extends from Lincoln’s left boot through the second “U” in PLURIBUS at 6 o’clock on the reverse. Continue reading →

Chris Kukor of Wisconsin sent in an interesting 2009 Formative Years (Rail Splitter) cent with doubled clash marks on the obverse of moderate strength and a rather subdued single clash mark on the reverse. Continue reading →

In my last installment of this series on doubled die finds on the District of Columbia quarters, I reported that Rick LaJoie of New Hampshire had spotted three new varieties on the Philadelphia issue. This brought us up to one variety for the Denver issue and six for Philadelphia. Continue reading →

A 2007-P George Washington Presidential dollar with a serrated edge that seems to defy logic has been reported to me by Rodger L. Poole of Fairborn, Ohio. Continue reading →

John Horengic of Maryland was the first collector to report to me one of the new Formative Years commemorative Lincoln cents with a doubled-die reverse, and I am now aware of three different ones. Continue reading →

Bob Kehn of Montana sent in a 1961 Franklin half dollar that is struck through grease and possibly other contaminants on the obverse and reverse. Continue reading →