The Grasdorf Plates

So I've actually done a little bit of research into this one, the problem is it's like the story fell of the face of the planet. The three Grasdorf plates, made up of a gold, silver and a bronze plate (discs), measuring about 12 inches in diameter and of very high purity where found 9 or so days after the discovery of a very large crop circle, by a curious dude who stole the things. Later selling them to a collector, who supposedly melted down the gold one and sold it off.

I don't know, I really can't make heads or tales from the information available so I'll link to all the articles I could find.

3 Metal Discs Found In Germany

3 Metal discs found in the Grasdorf Pictogram, Germany 1991

Those Mysterious Gold Plates Discovered Beneath Crop Circles In Germany Which Have The Same Design On Them

So what do you guys think, expensive hoax? or do you look forward to the day new info arises.

The videos are from an old FOX report where you'll get a brief glimpse of the plates.