Project 10073 Record Card — Tehran, Iran, 23 October 1957

On October 23, 1957, at 1154 hours local time, a Master Sergeant from the US Army Attache Office in Tehran, Iran, reported observing an unidentified aerial phenomenon. The witness, accompanied by his wife and a servant, observed a high vapor trail moving from east to west over Tehran for approximately three and a half minutes. The object itself was not visible, and no noise was heard during the observation. The vapor trail was estimated to be at an altitude exceeding 60,000 feet. The report notes that the trail appeared to be in a straight line, but exhibited a rolling motion before entering a high, thin cirrus cloud in the west, where it subsequently disappeared. The reporting officer, Lieutenant Colonel Leo M. Braun, noted that there was very little information available to form a definitive conclusion, though the duration of the sighting and the presence of a contrail suggested the object was likely an aircraft. The report was forwarded to USAFE and the Air Attaches in Afghanistan, Iraq, Syria, and Russia. The document was later declassified under authority AFR 205-1D.