Won U. S. and British Opens plus U. S. and British Amateurs in 1930 to become golf’s only Grand Slam winner ever; from 1922-30, won 4 U.S. Opens, 5 U.S. Amateurs, 3 British Opens, and played in 6 Walker Cups. Jones also founded the Masters tournament in 1934. Vintage ink signature and inscription, “For Adele, with best wishes, Robt. T. Jones, Jr.,” on an off-white 5.25 x 4.5 album page. In fine condition, with some light show-through from a signature on reverse. Auction LOA Steve Grad/PSA/DNA and R&R COA.