This is a complete collection of limited edition silver proof sets, containing six proof sets The sets are from the United States Mint and include coins from the years 2018 to 2023, with a variety of denominations and compositions, including silver. These coins were struck in proof quality, with a fineness of 0.999, and minted in San Francisco. The collection comes with certification from the U. Mint and is a must-have for any coin collector.