1856-S Three-Dollar Gold Piece. Medium S. AU-53 (NGC).A boldly to sharply defined example with even light gold patina and ample remnants of original luster. Despite its status as the most frequently encountered San Francisco Mint three-dollar gold piece, the 1856-S is still a scarce issue when viewed in the wider context of U.S. numismatics. Only 34,500 coins were produced, most of which have long since been lost to commercial use.From the Blue Ridge Mountains Portfolio.