Mark McGwire Signed Official A.L Baseball Rookie Autograph PSA LOA Oakland A’s

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Very rare 1987 rookie full autograph mark McGwire signed official American League ( bobby brown HAITI BASEBALL. ERA OF 1984-1990. This ball has a great vintage feel to it. With a full rookie McGwire autograph comes with a vintage Psa DNA letter of authenticity that has been signed by james spence the letter is dated February 7 2001. It also has a full letter from Randall p Hahn who was a foremost mark McGwire expert. With a detailed letter so you receive 2 incredibly powerful letters of authenticity because this ball is more valuable then most due to the dating of his rookie season and rookie autograph !! 

 We have an actual store got over 25 years cardboard memories in commack Long Island New York