Spahn won 363 games, more than any other left-handed pitcher in history, and more than any other pitcher who played his entire career in the post-1920 live-ball era. He is acknowledged as one of the best pitchers in Major League Baseball history. The Warren Spahn Award, given to the major leagues' best left-handed pitcher, is named after him.
This Rawlings official National League baseball was signed in blue by Spahn and inscribed, "363 Wins" and "HOF 73." This baseball includes a PSA/DNA sticker. This baseball has some fading as seen in the photos.