This 7-coin clad set from 2021 features a beautiful tribute to the Tuskegee Airmen, a group of American pilots who flew during World War II. The coins are made of copper and have a proof strike type, with a grade of PR 70. They are uncirculated and come with a certification number of 6245732-026 from NGC, a trusted certification company. The coins have a denomination of 25C and were minted in San Francisco, United States. The KM number will vary, and the coins are part of the America the Beautiful series. This set is a must-have for any coin collector or history enthusiast.