2011-P ATB Chickasaw OK 5 oz .999 Fine Silver Coin from the United States Mint. This coin is part of the America the Beautiful series and features a business strike type. It is composed of silver with a fineness of 0.999 and has a total precious metal content of 5 oz. The coin comes with an original government package, certificate of authenticity, and is in uncirculated condition. Produced by the U.S. Mint, this coin is a valuable addition to any coin collection.