This product is a vintage ticket stub from Mark McGwire's 67th and 68th home runs on September 26, 1998, with the St Louis Cardinals. Authenticated by PSA, this ticket stub holds historical significance for fans of baseball memorabilia, especially those interested in vintage sports memorabilia from the career of Mark McGwire. It serves as a unique piece of sports history captured from a specific moment in time, making it a valuable collectible for enthusiasts of the sport.