One of the more controversial topics involving Nikola Tesla is what became of many of his technical and scientific papers after he died in 1943. Just before his death at the height of World War II, he claimed that he had perfected his so-called “death beam.” So it was natural that the FBI and other U.S. Government agencies would be interested in any scientific ideas involving weaponry. Some were concerned that Tesla’s papers might fall into the hands of the Axis powers or the Soviets.

The morning after the inventor’s death, his nephew Sava Kosanovic´ hurried to his uncle’s room at the Hotel New Yorker. He was an up-and-coming Yugoslav official with suspected connections to the communist party in his country. By the time he arrived, Tesla’s body had already been removed, and Kosanovic´ suspected that someone had already gone through his uncle’s effects. Technical papers were missing as well as a black notebook he knew Tesla kept—a notebook with several hundred pages, some of which were marked “Government.”

There are samples of the papers on the PBS site. Six documents in all.
Lovely mental steak for newly indoctrined Tesla geeks like myself.

(via pbs, digg)