CIA-UAP-D020, Memorandum on Unconventional Aircraft Sightings, 1955

According to the U.S. Department of War source page, this file is a Central Intelligence Agency memorandum documenting the debriefing of a group of four observers who reported seeing a 'greenish-yellow' luminescent phenomenon described as a 'flying saucer' or 'unconventional aircraft' in 1955. The witnesses — U.S. Senator Richard Russell, a U.S. military service member, and two U.S. Government officials — made the observation from aboard a train traveling within the Soviet Union, in present-day Azerbaijan between Baku and Tiflis (Tbilisi, Georgia). The memorandum concludes the observation 'can probably be explained as steep climbing aircraft or missiles,' and that 'the evidence does not appear sufficiently firm to warrant the conclusion that the Soviets have developed... a radically new type of aircraft.' A companion document, CIA-UAP-D021, contains a contemporary analysis of the incident. The file is presented here as an image thumbnail with no extractable text; this metadata draws on the publisher's page description.