Alemeda reported light formation observation — May 1955

On or during May 1955, at or near Alemeda, California, United States, the source reports the following sequence: BRIEF SUMMARY OF SIGHTING: One silvery object was observed for a period of 5 minutes. It was observed to make a few small movements and then faded from view. INFORMATION 6 ATTA SATING 4.76 68 The text on the document reads: "THE OBSERVED DESCRIPTION OF THE OBJECT SIGHTED IS AS FOLLOWS: OBSERVER SAW OBJECT HOVERING OVER RUNWAY OF AIRBASE FOR ABOUT 5 MINUTES. As an OCR (Optical Character Recognition) system, the text found in the document is as follows: THIRTY MILE S OT-21 RE 450T CARVES FOR-CARLES EIGHT TO FORTY FEET LONG FLYING OVER ALAMEDA CALIFORNIA REPORTED BY WITNESSES TWENTY-FIVE YEARS AGO SIGHTED NORTHWEST TO SOUTHEAST ACROSS ALAMEDA CALIFORNIA WERE UP TO THIRTY OF THESE OBJECTS FLYING IN A GROUP AT APPROXIMATELY 1,000 FEET ALTITUDE AT A SPEED OF ABOUT 150 MILES PER HOUR. THEY FLEW ERRATICALLY AND AT VARIABLE SPEEDS, SOMETIMES ACCELERATING TREMENDOUSLY AND AT OTHER TIMES HOVERING OR EVEN STOPPING MOMENTARILY. The image appears to be a UFOB (Unidentified Flying Object) Index Card from the Project Blue Book archives. OF OBJECTS 1 BRIEF SUMMARY OF SIGHTING: One (1) round, silver object, the size of a dime held at arm's length, was observed for a period of 30 minutes. CONCLUSIONS: The sighted object has all the characteristics of a balloon.