Chicago Illinois, [ILLEGIBLE]Date unknown

This case file contains multiple separate UFO sightings from June 1952, most of which are too heavily obscured by poor OCR quality to summarize with confidence. However, the file does include several more legible incidents worth noting.

On June 4, 1952, near Stuttgart, Germany, a U.S. Air Force pilot and copilot flying a C-47 transport aircraft observed a very bright white light crossing in front of their aircraft at roughly 7,000 feet altitude. The object was traveling at speeds comparable to a jet fighter and made fairly tight turns. The pilots described the light as having no visible beams or trailing debris. When the object maneuvered closer, the bright white light changed to a blinking red light, then a blinking green light, and back to white. The pilots attempted to determine the object's silhouette against the city lights of Stuttgart below and observed what might have been a circular shape with white lights on the leading edge and what appeared to be heat haze around the trailing edge. The object then made a sharp left turn and disappeared beneath the aircraft. The sighting lasted approximately three minutes total. A check with the nearby Neubiberg Air Base revealed that eight aircraft had departed during a time window that could have placed one or more near Stuttgart during the sighting, offering a possible conventional explanation.

On June 5, 1952, in Lubbock, Texas, two observers reported seeing eight unidentified flying objects over a 45 minute period beginning around 2300 hours. The objects appeared spherical, roughly six inches in diameter (comparable to a bright star like Jupiter), and emitted a constant yellow glow. Seven of the eight objects flew from north to south at high altitude, estimated above 40,000 feet based on comparison with B-36 bombers familiar to the area. Two objects appeared together in trail formation approximately 100 yards apart. The objects flew in straight, level flight with no sound. The last two objects made sharp turns toward the southeast. The witnesses viewed the objects both with the naked eye and through 7x35 binoculars, seeing no difference in appearance either way. Weather conditions were clear with scattered clouds at 12,000 and 25,000 feet. The file notes that B-25 aircraft were known to be in the vicinity at the time, and one C-47 departed Reese Air Force Base during the sighting window, though the observers had earlier clearly identified other conventional aircraft.

On June 5, 1952, near Albuquerque, New Mexico, a ground observer (identified as a staff sergeant with the 4925th Test Group at Kirtland Air Force Base) reported seeing a single shiny, round object at roughly 1845 hours. The object was traveling north at very high speed and very high altitude. The observer estimated its speed to be five or six times that of an F-86 jet fighter. The object crossed above a B-29 or B-50 bomber that was flying on an easterly course at approximately 10,000 feet, and the observer believed the object was at a much greater altitude than the bomber. The object made no noise and left no trail. The sighting lasted approximately six seconds. The observer was regarded as fairly reliable due to his mechanical training and experience judging aircraft altitude and speed.

The file also contains several other June 1952 sightings from various locations, but the OCR degradation on those pages makes reliable summarization impossible. The case file runs to 43 pages as held by the National Archives.