The 2009 1 oz American Silver Eagle BU, also known as Brilliant Uncirculated, is a precious silver bullion coin. It's the official silver bullion coin of the United States and formally introduced by the U.S mint in 1986. The BU denotes coins in new condition with no wear or tear, which have not been used in trade. This particular version, minted in 2009, is composed of one troy ounce of .999 pure silver. It carries a face value of $1, backed by the U.S. government, though its real market value typically exceeds its face value due to the intrinsic value of silver. On the obverse, it displays Adolph A. Weinman's image of Lady Liberty draped in an American flag, striding toward the sunrise. The reverse features John Mercanti's rendition of a heraldic eagle behind a shield, carrying an olive branch in its right talon and arrows in its left, with 13 small stars above the eagle, representing the original 13 colonies. Maintaining its standard weight and purity over the years, the American Silver Eagle continues to be highly coveted by investors and collectors worldwide for its silver content and iconic design.