The 1776-1976 Bicentennial Silver Uncirculated Coin Set includes coins with denominations of 25, 50, and $1, all composed of 40% silver. Minted in San Francisco in 1976, these business strike coins come in original packaging with a Certificate of Authenticity from the U.S. Mint. The collection features various KM numbers and is a valuable addition to any coin enthusiast's collection, showcasing the rich history and craftsmanship of American coinage.