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Envelope addressed to Julius Mattson, FBI Portland, postmarked 17 March 1975

Document date 17 March 1975

Part 9page 3211 pageDB Cooper-1036

Open in FBI Vault (Part 9, page 321 of the PDF)
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Id: Cooper-Part-09:321-321

Subject: Cooper Files: Cooper-Part-09:321-321

Document: Envelope addressed to Julius Mattson, FBI Portland, postmarked 17 March 1975
Id: Cooper-Part-09:321-321
Page: https://cooper.theunsolved.net/documents/Cooper-Part-09%3A321-321

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FBI 164-81, Vault Part 9 p. 321 (DB Cooper-1036), Other, dated 17 Mar 1975 — cooper.theunsolved.net/documents/Cooper-Part-09%3A321-321

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Julius L. MattsonFBI agent
PagePart 9 p. 321DB Cooper-1036

U.S. POSTAL SERVICE, OR 970 PM 17 MAR 1975 [U.S. postage stamp: "collective bargaining" 10c]

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Julius Mattson F. B. I. Portland, Oregon Federal Court House

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DB Cooper-1036