Source:Nibley:CW06:Ch2:5

[In the 1950s] some silver plates from the time of Lehi have turned up not far from his home. They were found in the "Bertiz" valley, carefully laid away in a bronze vessel. The plates measured 4.5 by 5 centimeters, were quite thin, and were entirely covered with writing, twenty-two lines of Semitic characters "pressed into the metal with a hard sharp object." Almost at the same time small plates made of gold and silver foil and covered with Hebrew and Aramaic inscriptions were found: they seem to have been carried about as talismans, and the writing on them included magic words and names of power, along with the name of the God of Israel.