The 1971 US Mint Set includes 11 uncirculated coins with a Certificate of Authenticity from the U.S. Mint. This set features coins struck at the Philadelphia, Denver, and San Francisco mints, including a variety of denominations such as pennies and dimes. As a collector's item, this set showcases the high quality and craftsmanship of U.S. coins from the early 1970s, making it a valuable addition to any coin collection.