og. The appearance’ of the term "micro dots“ on page 44 : of Lae. ‘Oswald’ 7 address “book aroused: -Our suspicions, s : bests: were, made by. .the FBI ox. CIA,. ec Released on 11-02-2017 under 3 | the John F. Kennedy OR: PRESERVAT 3008 “| Assassination Records Collection —NSA® ‘ARCHIVES FS | Act of 1992 (44 USC 2017 Note) PEE nS ) ” & DETERIORATING 8
“puch examination: aici be’ ‘conducted: =) the: PBL or: CIM, Te m lore’ dots até Sctually found, eM. gould be nappy to ‘Collaborate
foe Te “relating 7 vey Oswald. case’ provided by boop Warren’ Comm sston: was. ‘examined: ait there ® ‘wae HO"Lndd cat Lon “that ‘any of: the tens’ “were: sed “for
President's Commission on the Assassination of Progident Kennedy ; o 200 Maryland Avemie N.E, a Washington, D.C, 20602 ATIN: Mr. J. Lee Rankin General Counsel - : — Dear Mr. Rankin: Skilled eryptologists at NSA carefully examined the materials relating to the Lee Harvey Oswald case provided by the Warren Com- mission, The results are as follows: a. A detailed examination of the two dictianartes revealed no indication of their use for aryptographic purposes. b. ‘th the correspondence, the Oswald Diary, and the other documert 5 examined there were no evidences of the use of any type of cryptography, to include the use of an \ open code. Uf DRSSRISUE TT TAT TOTy TANTS TFT ET Teo eT TD Cc; Certain letters had been removed from pages 150 and 182 of the Russian novel, GLAZA KOTORYE SPRASHIVAYUT, * Questioning Eyes." Eight letters had apparently been cut from page 152 ag followst ith Line 10 Line 11 Line 13 Line 16 Lins 24 Line 26 , Line 27 ATH ATH ER EEA _ One letter had been removed from page 150; however no significance is attributed to the removal of this letter since it corresponds in exact _ ELECTROSTATIC REPROBUCTION MADE FOR PRESERVATION PURPOSES BY THE NSA ARCHIVES FGR REPLACEMENT OF A DETERIORATING RiANUSCRIPT ITEM
se oe @ yom ae a position to ane Sof the letters removed from page sae “twas c con- . cluded that this letter had been accidently removed by the cutting process applied to page 152 and that its removal resulted from the application of excessive pressure on the cutting tool when the latter on page 152 was taken out. Tha sample is considered too small for any valid conclusions to bs reached as to the purposes for which the above noted letters were removed. it is considered most unlikely that this ‘Process of letter removal has any cryptographic implication. d. The Russian “Tourist” portable radio was examined fer cryptologic evidence. The radio appears to be a normal receiver and there was no evidence of its usé for any cther purpose. e. The names appearing in Lee's and Marina's address books were checked, No evidence of cryptologic implication was found, Although the results of the examination of the materials provided by the Commission are essentially negative, further study of these materials will be made. If any results are obtained, the Commission will be advised. However, it is considered most unlikely that any- thing beyond what is reported above will be discovered. Sincerely, GORDON A, BLAKE Lieutenant General, USAF Director
Doc ID: 6598290 ROUTING AND TRANSMITTAL SLIP a7 xv TO: (Name. office symbol, room number, Initials | Date bujiding, Agency/Post) V4 OY Es Tr ‘ | File Note and Return petion DR Approval | | For Clearance | {Per Conversation Requested | | For Correction _|_ | Prepare Reply preute For Your Information | {See Me investigate ; Signature Coordination REMARKS a ae roth Fy : fn" he ate ae rer ge aie eae DO NO this form as a RECORD of approvals, concurrences, nie ts, clearances, and similar actions Room No.-—-Bidg. Phone No. OPTIONAL FORM 41 (Rev. 7-76) Prescribed % GPO : 1977 O - 241-530 (3450) FPMR {42 cee 101 101-11.206 44USC2107(5)(g)(2)(D) b(v)