The 1987 United States Proof Set includes coins in denominations of 1c, 5c, 10c, 25c, and 50c, all minted in San Francisco. The set is classified as Uncirculated and has a Proof strike type. It comes with a holder and a Certificate of Authenticity (COA) from the U.S. Mint, indicating its authenticity and origin in the United States. This set is a valuable addition to any coin collection, showcasing the detailed design and craftsmanship of American currency from 1987.