New York Giants..... WILLIE MAYS one of GREATEST CENTER FIELDER in baseball history. This Beautiful collectible is double certified and PSA graded. A prize baseball collectible from the now greatest living baseball player just can't be found. This signed official Major League baseball has been authenticated by PSA and Graded an overall 9.5 Mint plus with the SIGNATURE GRADED a PERFECT 10....PSA overall grade # H40355. The signature PSA grade # is 81992694. The 2nd certification is by Willie Mays himself attached to the ball is his "Say Hey" sticker.