Background
The following documents were collected by UFO Investigator Rob Mercer, and digitized to preserve their history.
These documents are part of the “From the Desks of Project Blue Book” Archive.
Document Archive
From the Desks of Project Blue Book: A Preliminary Study Of Unidentified Targets Observed On Air Traffic Control Radars, May 1953 [17 Pages, 9.7MB]
https://documents.theblackvault.com/bluebookdesk/pbb-study-targets.pdf
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