Project 10073 Record Cards and Correspondence — Denver, Colorado, October 1960

This document contains records and correspondence regarding two separate UFO sightings in Denver, Colorado, in October 1960, processed under Project 10073. The first incident occurred on October 4, 1960, involving a round, deep pink object the size of a quarter. The witness, a reproduction technician, observed the object climbing at a 45-degree angle toward the northeast with jerky movements for approximately five minutes. Military investigations noted that Stapleton Airfield was nearby and suggested the object might have been a jet airliner, though no IFF traffic was logged at the time. The official conclusion for this event was 'probably a balloon.' The second incident occurred on October 8, 1960, involving a bright white object with a red light on top, described as shaped like a cereal bowl. The witness, a student, observed the object hovering, climbing, and gaining speed before disappearing rapidly to the west. The duration of this observation was 15 minutes. ATIC investigators noted that the object possessed characteristics of a helicopter, including hovering and an anti-collision light, but concluded that there was insufficient data to reach a valid conclusion. A follow-up request for more information regarding the October 8th sighting was sent to the witness, but no reply was received. The document includes official record cards, teletype messages between ATIC and Lowry AFB, and a formal request for further information from the Air Force Intelligence Center.