UFO case file · UFO-2257
Operation Mainbrace unidentified-object report — September 14, 1952
Operation Mainbrace, International waters
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NICAP's database preserves a brief report for September 14, 1952 at Operation Mainbrace, International waters: North Sea area/military exercise Ruppelt's version. No fuller event sequence is included in the source entry.
Recorded details
- Coordinate precision
- LOCALITY_APPROXIMATE
- Date precision
- EXACT_DAY