Document date 4 February 1974AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
The scan is the source; the transcript is machine-generated from it.
7-1b
REPORT OF THE
LABORATORY
FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D. C. 20535
To: SAC, [REDACTED] Date: February 4, 1974
FBI File No. [REDACTED] b6
Re: [REDACTED] Lab. No. [REDACTED] b7C
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Specimens received 1/15/74
Q11 Address book containing enciphered and unenciphered entries,
beginning on the inside front cover [REDACTED] and a slip b6
of paper beginning on one side [REDACTED]. b7C
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Result of examination:
In the following, the underlined telephone numbers are those
which have been decrypted. Those entries in specimen Q11, both
enciphered and unenciphered, which could be clarified, are listed on the
left with remarks on the right. Those entries which could not be further
clarified are not listed. Those decrypted telephone numbers not further
clarified are indicated by an asterisk (*).
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The key phrase from which the encryption evolved begins
[REDACTED] No definitive determination of the remainder b6
of the key could be made but may continue [REDACTED]. b7C