This 1990 United States Mint Proof Set is a must-have for any serious coin collector. The set includes proof coins minted in San Francisco and comes in its original box. The coins are uncirculated and have been certified by the U.S. Mint. The set features a variety of coins with different strike types and designs. Each coin is a beautiful representation of American history and culture. This is a great opportunity to add an impressive piece to your collection. Don't miss out on it!