UFO sightings of square-shaped objects in Pennsylvania

Summary

In July 1956, a witness in Penbrook, Pennsylvania reported two sightings of unidentified objects with square shapes. The first sighting involved twelve silver objects drifting slowly, while the second included eight bright, fast-moving objects at high altitude. The witness, Anna Chamberlin, was an active member of the Ground Observer Corps and described the objects in detail, including their sizes and colors. Despite her enthusiasm, investigators rated her reliability as "poor" due to her lack of technical background and tendency to exaggerate. The reports concluded the objects could be balloons or aircraft, but no definitive explanation was reached.