Just 233,300 and 378,200 respectively were issued almost 60 years ago. There hasn't been regular U.S. proof set mintages anywhere near as low since. Each 5-coin set features a 90% silver dime, quarter and half dollar as well as a penny and nickel. Some sets were broken up for coveted Franklin silver half dollar proofs, which were issued only as part of complete sets. Not many sets are ever available in the pristine mint quality we offer. Packaging may vary.