Number of posts : 51
Age : 28
Registration date : 03.12.07
|Tēma: Piesitiena kods 2008-11-04, 17:44|| |
In June 1965, four POWs -- Captain Carlyle ("Smitty") Harris, Lieutenant Phillip Butler, Lieutenant Robert Peel and Lieutenant Commander Robert Shumaker -- who were imprisoned in the same cell in Hoa Lo devised a simple, secretive code.
Harris remembered an Air Force instructor who had shown him a secret code based on a five-by-five alphabet matrix. Each letter was communicated by tapping two numbers: the first designated the horizontal row and the second designated the vertical row. The letter W, for example, would be 5-2; the letter H would be 2-3. The letter x was used to break up sentences and the letter "c" replaced the letter "k."