Advertising light mistaken for a UFO

Summary

A witness in Dayton, Ohio, reported in 1962 a white yellowish light moving in an unusual pattern across the sky. The light would appear and disappear as it reversed direction, causing confusion about its nature. Witnesses described it as brighter than a star and notably larger. The investigation concluded that it was part of a local advertising campaign using a powerful spotlight to attract attention. The light moved mechanically, explaining the repetitive pattern observed. Although initially mysterious, the case was resolved by identifying its earthly origin.