PROJECT 10073 RECORD CARD — Denver, Colorado, 12 August 1956

This document details a sighting incident that occurred on August 12, 1956, in Denver, Colorado. The report, filed under Project 10073 (reference AISS-UFOB-264-56), describes an observation of two objects moving slowly in an East-South-East (ESE) direction. The duration of the sighting was reported as over one hour. The investigation involved an interview with a pilot, identified as Lt. Davenport, who had performed an intercept action on the objects. Based on this intercept, the objects were determined to be two balloons flying at altitudes of 19,500 and 17,000 feet, respectively. The balloons appeared to be connected by a long cable with lights suspended from wires along its length. A separate press account included in the file mentions that Mrs. Mary McCaffrey and her son observed the objects from the Cosmopolitan Hotel, describing them as larger than the largest airplane. The report also notes that the Denver Police Department and Lowry Air Force Base received numerous calls regarding the lights. Despite the unusual nature of the sighting, the official conclusion reached by the headquarters was that the objects were balloons.