I've always liked sightings reported from pilots. Is a known fact that they're trained observes and personally I trust their judgment.

This document is very short and there are no details about the UFO. The object has been observed visually which means with no assistance of optical or electronical equipments. On June 7, 1952 the pilot and copilot of an B-25 sighted and object in a altitude estimated as 11.000 feet. The object appeared suddenly on the right wing of the plane in a distance approximately 250-300 feet from it.

The shape of the object appeared rectangular measuring 6 feet by 4 feet and made of a shiny material, possibly aluminum. The report has no more details.