[ILLEGIBLE], September 1948 - Incident Number: 173September 1948

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from [ILLEGIBLE], September 1948 - Incident Number: 173 in September 1948. The full case file (5 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 3.