Serial 1753

FBI LABORATORY
FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D.C. 20535

January 31, 1979

To: SAC, San Francisco
From: Director, FBI
Re: RYMUR

Examination requested by: Criminal Investigative Division
Reference: Personal delivery by [name deleted] on December 7, 1978
Examination requested: Cryptanalysis – Duplication
FBI file no: 89-4286
Lab. No.: 7075 G/E UV SH

Remarks:

Results of the Document examination will be submitted separately.

[Page 2]

REPORT OF THE
FBI LABORATORY
FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D.C. 20535

January 31, 1979

To: SAC, San Francisco
Re: RYMUR
FBI file no: 89-4286
Lab. No.: 7075 G/E UV SH

Specimens received: The specimen was personally delivered by [name deleted] on 12/7/78.

Qc42: One Maxell C90 cassette tape marked in part “Last Hour”

Results of examination:

One direct copy of Qc42 was prepared on a magnetic tape cassette.

Qc42 and the direct copy were personally delivered to the Document Section of the FBI Laboratory on 12/7/78.

[Page 3]

FEDERAL BUREAU OF INVESTIGATION
WASHINGTON, D.C. 20535
Laboratory Work Sheet

To: San Francisco
Re: RYMUR
FBI file no: 89-4286
Lab. No.: 7075 G/E UV SH

Examination requested by: Legat, Caracas [crossed out, handwritten substitute: “Criminal Investigative Division”]
Examination requested: Cryptanalysis – [handwritten addition “Duplication”]
Specimens received: December 7, 1978, personal delivery from Guyana by [name deleted]

Qc42: Direct copy of “Last Hour” tape

[Handwritten notes]
Maxell C90 cassette tape marked in part “Last Hour”
Direct copy made on C90 cassette
Original & copy provided to [name deleted] 12/7/78

Originally posted on August 3rd, 2020.

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