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__ JN 9-10 © os — “a By communication ddted September 3, 1964, the 4 Memphis Office forwarded to the Bureau three typewritten . (/retters voluntarily furnished b and requested that ... .- b7 the FBI Laboratory examine these letters to determine if they compared favorably with the typewritten extortion letter in | question, . a Oo . . . . _ On Septemb and_on September 21, 1964, | AC inquiry was made of dy Ob to determine i ' they ‘had developed any additional information relative to the _ tae umknown subject in this matter.: Both advised that they had eee been unable to develop any information relative to the identity | of the unknown Subject and that should they develop any information they would immediately advise the FBI.