Serial 1968x

0 070011Z FEB 79
FM SAN FRANCISCO (89-250) (P)
TO DIRECTOR (89-4286) PRIORITY
BT
UNCLAS EFTO
ATTENTION: LABORATORY DIVISION, DOCUMENT SECTION, TECHNICAL EVALUATION UNIT, CRYPTANALYSIS SUBUNIT ROOM 3883 JEH [J Edgar Hoover building]
RYMUR

San Francisco is in the process of administratively controlling the documents received from Guyana in preparation for review. A cursory review indicates some documents obviously contain codes. During the review of the documents San Francisco desires the reviewing agents to be in possession of a readable “codebook”.

San Francisco has previously supplied the Cryptanalysis Subunit with Xerox copies of all code information.

PAGE TWO SF 89-250 UNCLAS EFTO

Request of the Bureau:

The Cryptanalysis Subunit is requested either through its facilities or those of the Data Processing Section, to have all code information punched and entered into the computer. Thereafter, San Francisco desires the following listings:

  1. Ten alpha listings of all codes sorted by the code across from which would appear in the actual word.
  2. Ten alpha listings of all codes sorted by the actual word across from which would appear the code.
  3. The same listings as 1 and 2 above (10 copies each) broken down by date of the codebook or sheet.

“Armed and dangerous. Suicidal tendencies”

BT

Originally posted on August 5th, 2020.

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