This is an autographed MLB baseball that was used in a game by Sammy Solis of the Washington Nationals. It is a unique piece of memorabilia for any baseball fan or collector. The ball has been signed by Sammy Solis and doesn't comes with a certificate of authenticity but he signed it in person . It is a great addition to any collection of game-used memorabilia and a must-have for Washington Nationals fans. The ball was made in the United States and was used in an MLB game. It is a great way to own a piece of baseball history.