Project 10073 Record Card — Commerce, Michigan, 28 July 1956

This document consists of a Project 10073 record card and associated teletype correspondence regarding an unidentified aerial phenomenon reported on July 28, 1956, in Commerce, Michigan. The sighting was reported by a civilian observer associated with the Ground Observer Corps (GOC). The witness described observing a single, round, yellow object that appeared to be the size of a grapefruit when held at arm's length. At the time of the observation, the object was reported to be ascending. The weather conditions were noted as clear with excellent visibility. The report indicates that no photographs were taken and no radar contact was established. The official evaluation of the incident, as documented by the reporting officer and concurred with by the military authorities, concluded that the object was a balloon, likely a balloon used for business promotion. The teletype communication, dated July 30, 1956, confirms the details of the report and includes a note from 1st Lieutenant L. L. Richardson, a Senior Director, who also expressed the belief that the object was a balloon.