archive_org · gov / mil cred 4 · 1968-01-01

1968 12 7171176 Greenfield Iowa

Embedded from archive.org · open direct · source page

Tags

agency: US Air Force

evidence: Document

program: Project Blue Book

source: Public Archive Social Media

Metadata (14)

Source	archive_org
Source tier	1 (gov / mil)
Credibility	tier 4 / 5
Kind	document
Author	U.S. Air Force
Published	1968-01-01
Language	hau
First seen	2026-05-11 02:07
Last seen	2026-05-11 02:07
Source URL	https://archive.org/details/1968-12-7171176-Greenfield-Iowa
Direct URL	https://archive.org/details/1968-12-7171176-Greenfield-Iowa
· mediatype	texts
· subject	UFO, UFOs, Unidentified Flying Object, Unidentified Flying Objects, Air Force, U.S. Air Force, Blue Book, Project Blue Book
· query	subject:"unidentified flying object"

Permalink: /item/01KRACMJS2EMBZPPTR2CXATAQC.html

archive_org · gov / mil cred 4 35

Project Blue Book - 1940s Case Files - 505 cases

Project Blue Book was one of a series of systematic studies of unidentified flying objects (UFOs) conducted by the United States Air Force. It started in 1952, and it was the third study of its kind (the first two were projects Sign (1947) and Grudge (1949)). A termination order…

2015-01-01

archive_org · gov / mil cred 4 31

Project Blue Book : the top secret UFO findings revealed

vii, 423 pages, 32 unnumbered pages of plates : 18 cm Includes bibliographical references

1990-01-01

archive_org · gov / mil cred 4 33

Project BLUE BOOK (roll 1)

Roll 1 (microfilm) Case Files of Individual Sightings, Index, and File Nos. 1-54 , summer 1947-July 9, 1947, Project Blue Book . Released by U.S.National Archives and Records Administration (NARA), 1976. RG (Record Group) 341.

1976-01-01