Project 10073 Record Card — Concord, California, 8 August 1958

This document consists of a Project 10073 record card and an associated incoming military message regarding a UFO sighting reported on August 8, 1958. A civilian, accompanied by three or four other individuals, reported observing four 'flying saucers' over Concord, California, at 1730Z. The report was initially relayed via telephone to the MATS TCC at Travis Air Force Base. Subsequently, the information was forwarded to the Hamilton Flight Service Center. The incident was documented as a CIRVIS report, although a handwritten note on the incoming message explicitly states, 'This is not a CIRVIS message.' The message was processed and delivered to the Air Technical Intelligence Center (ATIC) on August 15, 1958, seven days after the sighting, as an 'Operation Immediate' TWX. The official conclusion recorded on the card is 'Insufficient Data.' Handwritten annotations on the incoming message suggest that investigators should verify if any official agencies, such as a nearby marine helicopter station, had sighted the objects, while another note reiterates the conclusion of insufficient data.