Project 10073 Record Card — Argyle, Iowa, 9 December 1957

This document consists of a Project 10073 record card and an associated teletype report regarding an unidentified aerial phenomenon observed on December 9, 1957, in Argyle, Iowa. A civilian witness reported observing a single, circular, white object for a duration of 15 minutes. According to the report, the object initially appeared as a dim light, increased in intensity until it became extremely bright, and then gradually faded from sight. The observer utilized 8x50 binoculars during the sighting. The weather conditions at the time were reported as clear. The official evaluation of the incident, conducted by Duty Director James R. Tison of the USAF, concluded that there was insufficient data to reach a definitive explanation. The investigator noted that the source failed to provide the specific location of the object relative to the observer, which hindered a proper analysis of the event. The teletype communication confirms the receipt of the report and reiterates the lack of sufficient information for a conclusive evaluation.