The First Commemorative Mint 5-Piece 20th Century Memorable U.S. Coins Collection includes a variety of denominations such as 1C, 5C, 10C, 25C, and $1, all originating from the United States. These business strike coins are ungraded and certified by the U.S. Mint, making them a valuable addition to any coin collection. Each piece represents a significant moment in U.S. history, making it a unique and meaningful collection for collectors and history enthusiasts alike.