Of all golfers of the last 75 years, one signed golf ball is unquestionably the most difficult to obtain - a signed ball of Tiger Woods. Obviously all Tiger Woods autographs are difficult to obtain, but signed golf balls are the most difficult, and most coveted, of all autographed items. Tiger simply refuses to sign them. Fake Tiger Woods signed golf balls are frequently offered for sale, and we've been forced to turn down dozens of balls in the past that we couldn't authenticate. But presented here is among the finest autographed Tiger Woods golf balls we've ever encountered, as it may have been used by Tiger during his time at Stanford before he turned professional. 

This Titleist 4 Stanford logo golf ball contains an early Tiger Woods autograph that dates to Tiger's college days between 1994 and 1996. The ball is marked with a red Sharpie and shows use, so we have a strong reason to believe that the ball was actually used by Tiger Woods; though we can't definitively prove that fact. But Tiger's early signature is unquestionably authentic. 

Full Letter of Authenticity from James Spence Authentication (JSA)