This is an autographed MLB Baseball from Don Larsen, legendary Yankees pitcher. Game 5 of the series against the Brooklyn Dodgers, which Larsen pitched, was the sixth perfect game in MLB history (one of only 23 to this day) and remains the only no-hitter or perfect game in World Series history. This hand-signed items comes with a Certificate of Authenticity and hologram from Latitude Sports Marketing. This process helps to ensure the product is authentic. Latitude Sports Marketing has been in business since 2005 and is one of the leading memorabilia companies in the Rocky Mountain region.