A 1947 Blue Book Distinct from Project Blue Book: AMC Records, Twining's SECRET Opinion, and Majestic Documents
To the point
A separate 1947 Blue Book exists apart from Project Blue Book and is linked to secret MAJIC material and Nathan Twining’s flying‑disc assessment, sent to Washington for Maj. Gen. George McDonald, supporting Majestic Documents claims and leaving the declassification timing unclear.