This is a muling of the obverse of 1851 used on J127-J131A/P149-P156 with the reverse of 1850 used on J119-J124/P134-P139. The illustrated example, struck in either copper or copper-nickel, is the only one known. It appears to have been perforated after striking. It is ex Merkin 6/30/65 in trade to the Chase Manhattan Bank collection and is now in the Smithsonian Institution. Photo courtesy of the National Numismatic Collection of the Smithsonian Institution.