German authorities in the state of Brandenburg said they were assisting him in the Stolpsee search.
According to some reports, the crates contain 350kg of gold and 100kg of platinum in bars which were stolen from prisoners at the Ravensbruck concentration camp near the Stolpsee. Another version holds that the precious metals were seized during the Kristallnacht pogrom in which countless Jewish businesses were ransacked by the Nazis in November 1938.
A German eyewitness named Eckard Litz told Allied investigators after the war that, on one night in March 1945, he had seen SS troops forcing emaciated concentration camp prisoners to load inflatable boats with heavy crates which were then ferried to the centre of the Stolpsee and thrown overboard. The boats made six such journeys. The SS then shot all the prisoners dead and sank their bodies in the lake together with the shot-through boats.
The sunken treasure saga remained almost forgotten until 1981 when West German journalist Gerd Heidemann rediscovered the story. Heidemann told the Stasi that he had a map showing the spot in the lake where the treasure lay.
The news reportedly "electrified" the infamous East German Stasi chief Erich Mielke who dispatched a unit of Stasi officers to the Stolpsee and ordered them to oversee a covert dredging operation code-named "autumn wind". After weeks, the Stasi abandoned the attempt empty-handed.
- Independent