Authenticated, collector-grade autographed memorabilia: Don Larsen signed Rawlings baseball (JSA CS78579) Don Larsen threw the only perfect game in World Series history on October 8, 1956 for the New York Yankees, earning the 1956 World Series MVP. A two-time World Series champion (1956, 1958), he remains one of the most memorable postseason pitchers in MLB history.

Collector's Highlights:

• Athlete: Don Larsen
• Item: Rawlings baseball, signed
• Authentication: JSA (James Spence Authentication) COA — Cert #CS78579

Authenticated by JSA, this verified authentic Don Larsen signature is a reliable, collector-grade piece that honors the only World Series perfect game. A trusted JSA COA supports the autograph’s legitimacy and long-term desirability for serious baseball memorabilia buyers.