Nine items: one ALS signed “Bobby Riggs,” one page, 7.25 x 10.5, March 19, 1952, in part: “Hope you play tennis and that one day you will be a champion”; one ALS signed “Helen Hull Jacobs,” one page on an off-white 5 x 3 card, regarding her career; and ink and felt tip signatures on individual slips and cards of Don Budge (2); Ellsworth Vines; Billie Jean King (2); Alice Marble; and Ken Rosewall and Pancho Gonzales (pencil). In very good to fine condition, with intersecting folds to the Riggs letter and overall wrinkling to the Rosewall and Gonzales slip. RR Auction COA.