The product is a Yogi Berra signed autographed first day cover featuring the New York Yankees pitcher Don Larsen. This unique item has been authenticated by PSA, ensuring the authenticity of the signature. The piece showcases an original autograph from Yogi Berra and is a valuable collectible for fans of baseball, particularly those who are fans of the New York Yankees or the legendary Babe Ruth. This limited edition item is a rare find for collectors looking to add a piece of baseball history to their collection.