PCGS authenticated and graded AU 58. Frosty steel and chocolate brown with lighter golden tan faded down from mint color in protected areas on the reverse. There are at least a half dozen small spots of lighter brown toning on the lower part of the obverse. The best identifying marks are a small splash of darker olive brown toning at the top of UN in UNITED and a spot of shallow crud at the left top of the O in ONE. MDS. The repunching at the base of the T in CENT is dull but still clearly visible and the fields show fine radial flowlines. Tied for CC#4 in the Noyes census, his photo #31514. 

Ex; Washington Square Coin Shop (W. Rickard) 1/1982 - Del Bland - Robert E. Vail, Superior 9/7/1997:411 (as AU50) - Wesley A. Rasmussen, Heritage Auctions 1/13/2005:3452 (as AU50) - Colonel Ellsworth Collection

Year - 1820
Variety - N-11
Rarity - 2