This 2009 P DC quarter has the Philadelphia mint mark which is much less commonly seen than coins with mint marks from the Denver and the San Francisco mints. "One Eyed Duke" is what we nicknamed this DC quarter honoring the great American musician, Duke Ellington as there's an apparent mint error with the right eye. Graded examples of this error coin have sold for five figures at auction! We think it's a great addition to the error coin collection for a reasonable price.As always, you be the judge! If you like the coin, we will always consider reasonable offers.