Project 10073 Record Card — Seattle, Washington, 23 April 1956

This document consists of a Project 10073 record card and associated teletype messages regarding a sighting reported on April 23, 1956, in Seattle, Washington. The witness, a 23-year-old draftsman employed by the Boeing Aircraft Corporation, observed a single, round, white object while located on a dock on the western side of Green Lake. The witness described the object as being approximately one-half the size of the moon. Its movement was characterized as rising and traveling toward the west-southwest, covering an arc of 140 degrees over a duration of seven to ten seconds. The witness provided a specific visual comparison, stating that the object looked like light on the spokes of a bicycle wheel going round and round. The official conclusion reached by the investigating authorities was that the object was a meteor, citing the large arc traveled within the short timeframe as the primary evidence for this determination. The report includes technical details such as the specific coordinates of the sighting and the witness's professional background, confirming that the observation was made under clear weather conditions with no radar or photographic evidence recorded.