Archive / Parts / Part 103 / Page 426
handwritten_note Legibility: high
Part 103, page 426 DB Cooper-46889 Serials SE 164-81-1552
Document date 23 December 1971 AI Dates: 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.
Open in FBI Vault (Part 103, page 426 of the PDF) Copy citation FBI 164-81, Vault Part 103 p. 426 (DB Cooper-46889), Letter, dated 23 Dec 1971, serial SE 164-81-1552 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-103/pages/426
Transcript The scan is the source; the transcript is machine-generated from it.
[guess: Subj] Ralph Conklin
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[REDACTED], Oregon,
December 23, 1971.
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b6
b7C
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Dear Sirs :-
That drawing of Cooper, the hijacker,
looks just like Ralph Conklin, who lives two miles
east of Brownsville on Route 228.
Don't use my name.
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[REDACTED]
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Sub. 257.
164-81-1552
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SEARCHED ✓ INDEXED
SERIALIZED ✓ FILED ✓
DEC 24 1971
FBI - SEATTLE
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DB COOPER-46889
AI notes AI These notes: 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. 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.
Handwritten cursive notation, likely an FBI analyst's note identifying the subject of the tip as Ralph Conklin.
Return address and date line of the letter. Sender's name/city redacted under b6/b7C exemptions; state is Oregon, dated December 23, 1971.
FOIA exemption codes stamped or printed in the right margin, indicating redactions to protect personal privacy (b6) and law enforcement source identity (b7C).
Anonymous tip letter addressed to the FBI stating that the composite drawing of D.B. Cooper resembles a man named Ralph Conklin, who lives two miles east of Brownsville, Oregon on Route 228. The sender requests anonymity.
Sender's signature or name block, fully redacted under FOIA exemptions b6/b7C.
Handwritten FBI case tracking notations: 'Sub. 257' likely refers to subject number 257 in the NORJAK investigation, and 164-81-1552 is the FBI file/sub-file number.
FBI Seattle field office receipt stamp showing the letter was searched, indexed, serialized, and filed on December 24, 1971.
FBI Vault document identifier stamp for the D.B. Cooper case file, document number 46889.
Typed letter body is clearly legible Handwritten cursive at top is mostly legible Two redacted blocks (sender address and signature) per FOIA exemptions b6/b7C Minor speckling/artifacts from scan Scan order ← p. 425 p. 427 →