Earliest Known Mariano Rivera 1990 Gulf Coast Yankees Team Signed Baseball JSA
The Gulf Coast League Yankees are the Rookie League affiliate of Major League Baseball's New York Yankees. Presented here is a 1990 Gulf Coast Yankees Team Signed Official Gulf Coast League Baseball with 30 signatures. Notable signatures include early career, Pre-MLB Debut Mariano Rivera autograph with Hall of Famer Hoyt Wilhelm. Overall, the baseball is in excellent condition and displays very well. This item comes from the collection of Gene “Stick” Michael and is accompanied with a full LOA from JSA.
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