TLS signed “J. E. Hoover,” one page, 8 x 10.25, Federal Bureau of Investigation letterhead, August 24, 1951. Letter to Mrs. A. E. Mims of Arkansas. In part: “I note in your letter information indicating that a person known to you is apparently involved in securing streptomycin and aureomycin for transmission to Germany where it may be sold on the so-called black market.” Intersecting folds (one vertical fold passing through a single letter of the signature), overall creases and toning, and moderate scattered tack holes and small tears, otherwise very good condition. RR Auction COA.