American novelist and playwright (1884–1933) best known for creating the fictional Chinese-American detective Charlie Chan. Ink signature, “Sincerely yours, Earl Derr Biggers, Pasadena, Calif., June 2, 1928,” on an off-white 5 x 4 slip. Intersecting folds (vertical fold to last name), and light scattered soiling and handling wear, otherwise fine condition. RRAuction COA.