Cooper Lake

Landmark5 pages5 references

United States / Washington / Kittitas County / Cooper Lake

4 documents, 5 including copies

LetterAnonymous letter to Northwest Orient president claiming to know Cooper's identity and location27 December 1971 · Part 73 · 1 page

p. 197≈ Cooper LakeHeader area with 'EXPOSE' stamp, date, location, and FBI exemption codes b6 and b7C. A letter dated December 27, 1971, addressed to Maynard W. Nyrop, President of Northwest Orient Airlines, from an…

LetterCitizen tip letter to Northwest Orient theorizing Cooper's identity and ransom location27 December 1973 · Part 68 · 1 page

p. 298≈ Cooper LakeA stamped or printed label reading EXPOSE, likely an FBI processing stamp or publication name. Date line, location, file markings (b6, b7C redaction codes), and FBI case reference number. A lengthy…

+1 copy

Part 79 p. 218

Copies may differ in what was redacted.

LetterAnonymous 'D.B. Cooper Expose' tip letter27 December 1973 · Part 78 · 2 pages · 1 of 2 pages

p. 301 · page 2 of 2≈ Cooper LakeHeader/title stamp area with case identifier and expose label. Date and location header with b6/b7C exemption codes. A letter dated December 27, 1973, addressed to Donald W. Nyrop, President of Nor…

LetterNorthwest Orient Airlines to FBI Minneapolis forwarding anonymous 'EXPOSE' tip letter, with envelope7 January 1974 · Part 33 · 3 pages · 1 of 3 pages

p. 346 · page 3 of 3≈ Cooper LakeHeader of the letter showing the title 'EXPOSE', the date, location, and FBI exemption codes b6 and b7C. A lengthy letter addressed to Northwest Orient Airlines from an anonymous individual claiming…