Kelly Farm Oil Company dividend check, 8.25 x 3, filled out in another hand and made payable to Mordecai Brown for $200, November 12, 1930, endorsed on the reverse by the Hall of Famer in fountain pen, "Mordecai Brown." In fine condition. A scarce autograph from 'Three Finger' Brown, who took his nickname from a childhood accident with farm machinery that resulted in a unique curveball grip. He anchored the rotation of the Chicago Cubs for two consecutive World Series championships in 1907 and 1908, and was posthumously inducted into the Baseball Hall of Fame in 1949. Encapsulated in a PSA/DNA authentication holder.