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FD-36 (Rev. $-22-64) FBI Date: 12/3/71 Transmit the following in (Type in plaintext or code) Vie AIRTEL , AIRMAIL i (Priority) \ rn nn ne ne ne en Loe ee se ee wt oe ~ TO: DIRECTOR, FBI (164-2122) (ATTENTION: PBI LABORATOR ne FROM: SAC, PORTIAND (164-41) (P) bIC SUBJECT: UNSUB, aka _ Dan Cooper 2.4 Coope~ Hijacking of Northwest Airline Flight #305 13/24/71 CAA -~ HIJACKING; EXTORTION 00: SEATTLE Re Portland airtel to Bureau dated 12/2/71 . . Enclosed for laboratory are original letter and envelope received 12/3/71, by Manager of Portland International Airport, Portland, Oregon. The letter is signed "D. B. COOPER" and is apparently a hoax. ; tf i One xerox cop of t ea—letter and envelope is being furnished Seattle. (5) ie Process the enclosures for latent fingerprint im- pressions. Note that envelope has been handled by many persons but letter has been protected and not handled since time of opening of envelope. | REQUEST OF THE LABORATORY Results of examination should be furnished Seattle and Portland and submitted items may be returned to Portland registered mail upon conclusion of examination. ony (3. Bureau (Enc. 1) (AM) (RM) Seattle (Enc. 2) (164-82) - Portland ‘A (G: \" SEARCHED, RPH:sao XRAY 7 APPIOVEGS et SONG MOP Ur Special Agent in Charge DB Cooper-3704 rere ncenemrentencnininyiinteprenamvaniniasanltancenstenres arieits 1) avlannattenaitntine mn NEE NAPOCLRUREURM eREmeetilt ilee eedlinme” we Bey Me oe Awe