The 1970 US Mint Set includes a rare 1970-D Half 50¢ piece along with other denominations such as 25¢, 10¢, 5¢, and 1¢. This set contains coins struck in silver with a fineness of 40% silver halves. Minted in Philadelphia and Denver, these uncirculated coins come directly from the U.S. Mint and are a valuable addition to any coin collection.