This is a set of (3) three 1974 S Proof Sets that are still sealed in the original mint mailer   The sets may contain errors or varieties and are perfect for collectors. These sets are ungraded and have a fineness of 0.999. They were minted in San Francisco and certified by the U.S. Mint. The coins are of different denominations and can be a great addition to your collection. This is a great opportunity to own a piece of history from the United States without worrying about the condition.