Project 10073 Record Card — Clarksville, Iowa, 27 December 1957

This document is a Project 10073 record card detailing a sighting that occurred on December 27, 1957, in Clarksville, Iowa. The report describes a single object observed by a civilian witness for a duration of over one minute. The witness characterized the object as round and diamond-shaped, tapering to a point, and approximately the size of a fist. The object displayed a green light on its right side and a rusty or amber light on its left side. Initially, the object was reported as stationary before moving in a north-westerly direction. The weather conditions at the time were noted as clear, with some clouds to the south. The report includes a conclusion stating that the object was 'undoubtedly aircraft.' The investigating officer, 1st Lt. Robert W. Jones, noted that he was unable to make a preliminary analysis as to the cause of the sighting, despite the final conclusion marked on the card. The document also contains handwritten annotations, including a note that appears to question the nature of the object in relation to aircraft, and a reference to the sighting time of 0425Z.