Description:Rare Henry Mathewson autograph. Exceedingly scarce autograph of Christy Mathewson's brother whom himself played on the 1906 and 07 Giants. His passing in 1917 has left his signature almost non-existent. Slip of approx. 2"x4.75" has been signed "Yours Sincerely, Henry Mathewson, 87 St. Nicholas Place N.Y. City" in period ink rating 8-8/9 out of 10. Includes auction LOA from JSA: Sig. NM