1860-O Liberty Seated Silver Dollar. OC-1. Rarity-1. MS-62 (PCGS).With intense mint frost to predominantly brilliant surfaces, this BU example is almost certainly from the Treasury Department silver dollar releases of 1962 to 1964, distributions from which have made the 1860-O one of the two most plentiful Liberty Seated issues of the No Motto type in Mint State (the other is the 1859-O). A strong candidate for inclusion in an Uncirculated type set.From the E. Horatio Morgan Collection.