UFO case file · UFO-2887
Portugal unidentified-object report — September 4, 1957
Unknown City, Portugal, Portugal
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NICAP's database preserves a brief report for September 4, 1957 at Portugal: Portuguese Air Force Jets Have 40-Minute Encounter. No fuller event sequence is included in the source entry.
Recorded details
- Coordinate precision
- COUNTRY
- Date precision
- EXACT_DAY