The product is a 1971 Topps #143 Steve Blass baseball card, featuring an autograph from the Pittsburgh Pirates pitcher. This rare card is the only known PSA 7 graded version in existence, with no higher graded copies available. As part of the Major League Baseball (MLB) series, this card is a sought-after collectible item for fans and collectors alike. The autograph adds a unique element to the card, making it a valuable addition to any sports memorabilia collection.