Tokyo Japan unidentified aerial event — May 1955

On or during May 1955, at or near Tokyo Japan, Japan, the source reports the following sequence: BRIEF SUMMARY OF SIGHTING Swept wing object sighted at approximately 60,000 feet. Object disappeared leaving puffs of smoke. 14:00 HRS, 2 JULY 1955 TOKYO, JAPAN SKT LIGHT BY OBSERVER SAG PROJECT LICHEN, REPORTED OBSERVATIONAL DATA.