This largest silver dollar in U.S. history, originally issued in 1986, contains a full troy ounce of .999 fine silver. The U.S. Mint does not sell the enormously popular silver eagle BUs directly to individual collectors, but we're pleased to offer the BU to our customers. Its magnificent "Walking Liberty" design first appeared on the 1916 U.S. half dollar during World War I. Regarded as the finest U.S. silver engraving, it's much larger in this silver dollar form. The Presidential Seal reverse is a distinctive version of a design that's appeared in various forms on U.S. coins since the beginning of the 19th century.