The ring gold half dollar of 1852. This design is actually struck using the reverse die of a half dime with the other side blank with the exception of the denticles. There are at least 5 known as follows per Akers Gold Pattern book: To see images of all of these, click here . 1) Smithsonian 2) Chase Manhattan Bank, Smithsonian 3) Boyd, Judd, Wilkison, Paramount, A-Mark, Leidman, 81 ANA, Superior 1/2008, Simpson-Heritage 1/24 FUN - PCGS65 4) Woodin, Lohr, Cox, Wilkison, Paramount, A-Mark, Auction 79, Auction 82, Simpson-Heritage 2/21 - PCGS66 5) Sloss, NERCA 79 ANA, B/M 9/93, Morgan-StacksBowers 8/19 ANA, Black Cat - PCGS66 Additional pedigrees chains for these include DeWitt Smith, V. Brand (journal id #46972), Armin Brand (sold 9/1/1940) and ex H.P. Smith (S.H. & H. Chapman 5/1906 lot 1343), Granberg. One is ex Newcomer, Col Green. 2 unstruck blank planchets exist for this, one ex Wilkison and the other ex Sloss, 79 ANA. A companion gold dollar struck using dime dies also was made as J136/P163. Photo courtesy of Rick Kay from images taken at the Smithsonian.