1860-O Liberty Seated Silver Dollar. OC-1. Rarity-1. MS-62 (PCGS).Brilliant-white surfaces are fully untoned with intense satin luster throughout. Almost certainly from the Treasury Department releases of the early to mid-1960s, which source has made the 1860-O one of the most popular Mint Sate type issues in the No Motto portion of the Liberty Seated silver dollar series.PCGS# 6950. NGC ID: 24Z3.