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Project Sign
Project Saucer
U.S. government study of UFOs.
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Wikipedia | Project Sign
External Pages About Project Sign
Encyclopædia Britannica Online
Statements about
Project Sign
Instance Of
Report
Main Subject
Unidentified Flying Object
Founded By
Described by Source
The Report on Unidentified Flying Objects
Followed By
Project Grudge
Commissioned By
United States Air Force
Image
Part Of
Inquiry
Nathan Farragut Twining
Technical Report
Investigation of UFO Reports by the United States Government
