Around mid-day on April 27, 1961, Bruno Ghibaudi, a scientific journalist, was driving the highway paralleling the beach at Montesilvano (Pescara), felt a flat tire and pulled his car over and stopped. As he began changing the bad tire, and as he was working at that task, he noticed an unusual metallic-looking disc- shaped flying objectcoming in at a low level over the ocean. It passed overhead, slowed, made a sharp turn towards the north and flew away. (Case 16, Project Blue Book)

Above is the only known photo of the strange, almost organic multi-winged craft Bruno photographed, as depicted in the artwork below from La Domenica del Corriere, April 15 1962. (artist unknown)

This Lockheed craft bears some resemblance to Bruno's, though the wings are very straight and it looks like fairly conventional aircraft, despite its streamlined appearance.

http://tanks45.tripod.com/Jets45/Histories/Lockheed-L133/L133.htm