Unexplained
Disk over Rabat · MA
Investigated by a competent body and left unresolved. The rarest grade, and never awarded by us — only recorded.
The report, as filed
Rabat, French Morocco. 9 p.m. Witness: E.J. Colisimo, a civilian illustrator with USAF Intelligence. One disc with lights along part of its circumference, flew twice as fast as a T-33 jet trainer, in a slightly curved path for 5 seconds.
Held as-reported from Project Blue Book, United States Air Force. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.