In 2005 the U.S. Mint introduced Special Satin Finish Coin Sets. These sets did not go into circulation, therefore, they are not circulation strike coins. Although, Satin Finish coins look more like circulation strike coins than proofs. However, Satin Finish coins usually come better struck than their circulation strike counterparts and are in better quality overall, as they were struck under extreme care. The 2005-P Satin Finish Sacagawea Dollar is no exception and coins up to SP68 can be easily purchased inexpensively. Only coins graded SP69 or higher are scarce.