Jake LaMotta vintage boxing autograph or cut signature

Vintage autograph signed in blue ballpoint pen at the 1950 World Series by the late, legendary fighter Jake LaMotta on a cut piece of laminated cardboard. Has typical age fading but still clearly legible. About 3 1/4 inches long. This was cut from a larger multi signed 1950 World Series piece authenticated by PSA/DNA as shown on their website. ONLY ONE AVAILABLE FOR SALE.