This is a good one folks, since the material is still under the possession of Dr. Peter Sturrock. It reportedly came from two witnesses of an aerial phenomenon, one of whom is deceased. Although the material appears to be tungsten carbide, the original shape of the object was unusual and no conventional use for such an object has ever been found.
von Ludwiger compiled this case and what follows is his exact description of the chain of events. Two witnesses, Stig Ekberg and Harry Sjöberg were building a house on the island of Väddö, about 90 km NNW of Stockholm on November 11th, 1956. At about 10 p.m. Ekberg was driving his Ford V8 pickup when they saw a bright flying object with the shape of flattened sphere 8 m. wide and 3 m. high approaching from the right (from the east) against the clear night sky. They estimated that it flew about 1 km in front of them at an altitude of 100 meters. Suddenly it made a sharp turn towards them, at which time the truck engine sputtered and died and the headlights went out. The object started a slowly gliding down. It seemed to rock back and forth until it came to a stop in the middle of the road, about 100m in front of them, one meter above the ground. It was illuminating the surrounding landscape with such a tremendous amount of light that even a barn, half a kilometer away, was visible as if the sun was shining. The air smelled like ozone and smoldering insulation.
After about 10 minutes the light of the object intensified, it lifted off the ground, moved to the left and up, made a sudden turn and accelerated away in the direction from which it came. At that point Ekberg was able to restart the truck normally, and the headlights came back on. Observing that the grass at the landing site had been flattened, they investigated further and found a shiny rock that was hot to the touch. It was a three-sided piece of metal about the size of a matchbox, and had a heavy weight.
The material from the incident
After several unsuccessful attempts to have the sample studied, it was taken to the SAAB airline manufacturing company where Mr. Sven Schalin conducted a thorough analysis. Other tests were later run in laboratories in Sweden, Denmark and Germany. The general conclusion was that the object was composed of tungsten carbide and cobalt, consistent with manufactured products. According to von Ludwiger, all industrial countries have companies which produce such hard metals, and the manufacturing technology is in principle the same. The overall quality of the material was outstanding, but not unusual for the early 1950s.
This case was categorized under CE-2, which stands for Close Encounter with Physical Effects!