LetterAnonymous cut-out/collage letter claiming to be the hijacker, with envelopepage 1 of 4
handwritten_noteLegibility: medium

Part 16, page 402

DB Cooper-4780Serials SE 164-81-1380

Open in FBI Vault (Part 16, page 402 of the PDF)

FBI 164-81, Vault Part 16 p. 402 (DB Cooper-4780), Letter, serial SE 164-81-1380 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-16/pages/402

Transcript

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

THE PERFECT CRime GRaNT ME AmnesTy MONeY will BE RETURneD NO Harm doNE answer BY way of PuBLic AnnOceMenT WITHIN 48 hrs

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164-81-1380 [illegible handwriting] DB Cooper-4780 [guess: p40]