LetterAnonymous cut-out/collage letter claiming to be the hijacker, with envelopepage 2 of 4
otherLegibility: high

Part 16, page 403

DB Cooper-4781

Open in FBI Vault (Part 16, page 403 of the PDF)

FBI 164-81, Vault Part 16 p. 403 (DB Cooper-4781), Letter, serial SE 164-81-1380 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-16/pages/403

Transcript

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

Yabba dabba doo! I've Won admit you've lost

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Sincerely, ||| alais, DB Cooper

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DB Cooper-4781

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SEATTLE Copy