Project 10073 Record Card — Washington, D.C. — 7 September 1955

This document is a formal Air Intelligence Information Report regarding an unidentified flying object sighting that occurred on 7 September 1955 in Washington, D.C. The report, prepared by Major Manley H. Dale, Jr., details an incident involving three employees of the Army Map Service. According to the report, one of the witnesses observed the object while tossing a coin during a break near the 'coffee mobile.' The witnesses described the object as round, illuminated, and approximately the size of a silver dollar. It was observed moving in an arc across the sky for a duration of one minute before disappearing over the Dalecarlia Reservoir. The report notes that there was no sound associated with the object and that weather conditions at the time were excellent, with clear visibility and high ceilings. Furthermore, the report confirms that there was no air traffic in the vicinity at the time of the sighting. The official conclusion reached by the intelligence authorities is that no explanation for the sighting can be provided, and no further action is planned regarding this specific incident. The document includes a Project 10073 record card, which categorizes the event as 'UNIDENTIFIED' and notes that the data provided was insufficient for a definitive evaluation.