1859-O Liberty Seated Silver Dollar. OC-1. Rarity-1. Unc Details--Questionable Color (PCGS). Thanks to the emergence of examples of each issue in the Treasury Department silver dollar releases of the early to mid-1960s, the 1859-O and 1860-O are the two most plentiful No Motto Liberty Seated dollars in Mint State. The 1859-O is considerably scarcer than the 1860-O, although both are equally popular for type purposes. From the Naples Bay Collection. From the Naples Bay Collection.