The Mystery Box of Coins includes a 90% silver coin from various years, mint locations, and strike types. The set may contain coins with mixed denominations, including bronze, gold, silver, and copper. Each box comes with one 5 coin mint set, along with other coins that add to the mysterious and exciting collection for any coin enthusiast. This unique product offers a mix of uncirculated and circulated coins, all with a shiny satin or proof-like finish, making it a great addition to any coin collection.