Author Archives: Ken Potter

Eagle-eyed variety coin aficionado Rich Darby of New York State has found a Denver version of a Thomas Jefferson Presidential dollar with a die clash resulting in an aberration that makes the rays in Liberty’s crown (on the reverse) appear to have an eighth ray where there are normally seven. Continue reading →

A 2009-P James K. Polk Presidential dollar with dropped “T” letter on the edge has been found by John Morris of Florida.
Continue reading →

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

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 →

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

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 →

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 →

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 →

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

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 →