Part 40, page 342

DB Cooper-10Serials SE 164-81-7785

Document date 2 October 1977

Open in FBI Vault (Part 40, page 342 of the PDF)

FBI 164-81, Vault Part 40 p. 342 (DB Cooper-10), Report, dated 2 Oct 1977, serial SE 164-81-7785 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-40/pages/342

Transcript

The scan is the source; the transcript is machine-generated from it.

Atlas Chemical Testing Laboratories, Inc. 2765 SO. HIGHLAND DR., SUITE 204 • (702) 735-6171 • LAS VEGAS, NEVADA 89102

October 2, 1977

CHEMICAL member of PHYSICAL AMERICAN SOCIETY FOR FORENSIC TESTING MATERIALS

LABORATORY NO: [REDACTED] b6 SAMPLE: Fibre Cording b7C FOUND: Cascade Mts. in Northern Oregon on May 21 or 22 b7D DATE RECEIVED: 9/29/77 SUBMITTED BY: [REDACTED] [REDACTED] b6 b7C b7D

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REPORT OF DETERMINATION

The sample of material submitted to our laboratory for analysis was identified as nylon cording by morphological examination, see the attached photomicrograph of fibre magnified to 300X.

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Respectfully submitted. ATLAS CHEMICAL TESTING LABORATORY, INC.

[REDACTED] b6 b7C Forensic Chemist.

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This report is submitted to the only use. As a protection to the client, this report may not be used in whole publicity or promotion without this

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164-81-7785 SEARCHED...........INDEXED............... SERIALIZED...........FILED NOV 1 1977 FBI – SEATTLE

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DB Cooper-10[illegible]9

AI notes

Commentary by the AI model that transcribed this page. It may bring in context the page itself does not state. The scan is the source; the transcript is machine-generated from it.

Letterhead and intake form from Atlas Chemical Testing Laboratories in Las Vegas, documenting receipt of a fibre cording sample found in the Cascade Mountains of Northern Oregon on May 21 or 22, received by the lab on September 29, 1977. The lab report identifies the submitted sample as nylon cording based on morphological examination, with a reference to an attached photomicrograph at 300X magnification. Signature block of the report, signed by a redacted Forensic Chemist from Atlas Chemical Testing Laboratory. Disclaimer text restricting use and reproduction of the lab report without authorization. FBI Seattle field office filing stamp showing the document was serialized and filed on November 1, 1977, with case number 164-81-7785. Small photograph or photomicrograph, likely the referenced 300X magnification image of the fibre sample. A label reads DB Cooper with partially illegible numbers.

Some text is slightly blurry or degraded from photocopy
Several redaction boxes (b6, b7C, b7D) obscure portions of the document
A small photograph in the bottom-right corner is low resolution

Part 40, page 342

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