He began playing professional baseball in 1890 and was the star third baseman of the renowned Baltimore Orioles of the National League. McGraw managed the Orioles in 1899, and after the team was dropped by the National League, he helped organize the American League. As manager (1902-32) of the New York Giants of the National League, the fiery, efficient John J. McGraw became one of the outstanding figures of baseball. He led the Giants to 10 pennants and three World Series victories. He was inducted into the National Baseball Hall of Fame in 1937. Rare vintage ink signature, “J. J. McGraw,” on a beige 4 x 1 slip, clipped from a check. Signature is encapsulated in a hard-plastic PSA/DNA authentication holder. A small brush to last name and a few stray ink marks, otherwise fine condition. R&R COA.
