The 2010 Uncirculated Edition Presidential Dollar Collection featuring James Buchanan is a special coin set from the United States Mint. This collection includes a $1 coin with a copper composition, minted in Philadelphia in 2010. The coin celebrates the life and presidency of James Buchanan, the 15th President of the United States. This uncirculated edition is a valuable addition to any coin collection, showcasing a piece of American history and the artistry of presidential dollar coins.