🇺🇸 USAF — Project Blue Book
In February 1956, a woman in Wisconsin observed a round object the size of a half-dollar coin. She described it as having red, white, yellow, and blue colors, an unusual combination that caught attention. The sighting lasted 15 minutes, but no photos were taken and there were no additional data to confirm its nature. The lack of clear information meant investigators couldn't classify the phenomenon.
Although the sighting was reported visually from the ground, there were no radar readings or additional witnesses to confirm the observation. The report concluded that there was insufficient data for evaluation. Cases like this, though incomplete, are valuable for understanding how sightings were handled in the 1950s, before stricter protocols were established.