Unbound. Typed Letter Signed by Mickey Mantle on New York Yankees, Inc. stationery, and dated July 28, 1953. Folded as mailed, a small section of bleed-through from a piece of tape on the verso (since removed), some finger smudges, a very good or better example. A brief letter to a fan providing an autograph and noting: "It sure is encouraging to know of your interest in me and the Yankees." A relatively early autograph. 1953 was Mantle's second full season with the team, and this letter has a certain nostalgia factor seldom found in the many post-career autographs that the Yankee legend provided.