Pulp Magazine Cover

This appears to be an official U.S. Air Force UFO report, not a pulp magazine. The document concerns a sighting near Klamath Falls, Oregon on 28 April 1953. An unidentified observer reported a white, round ball-shaped object moving at high speed in what appeared to be a dive, observed for five seconds at approximately 1900 PST from ground level. The object allegedly disappeared behind a mountain top. Located roughly 30 miles west-southwest at an estimated 9,000 feet altitude, it reportedly was brighter than typical meteors and produced no sound. The sighting occurred under broken cloud conditions with 30-mile visibility. The 25th Air Division reported no unidentified radar tracks in the area at that time. No physical evidence was collected, and no interception action was taken.