1909-O Barber Quarter. AU Details--Cleaned (PCGS). The 1909-O, last of the New Orleans Mint quarters, is quite scarce in all grades with a mintage of 712,000 coins. Even Extremely Fine and About Uncirculated examples are elusive, and in the latter grade this is one of the most challenging Barber quarters to locate. Clearly this more affordable example has much to offer the astute bidder. From the Lincoln Square Collection.