15 November 1941
The following is the order and method of destroying the code machines in the event of an emergency.
Note: Three paragraphs giving detailed instructions for the destruction of code machines have not been printed.
Washington relay to Mexico, Rio de Janeiro and Buenos Aires. Berne relay to NSW and NLH (Rome and Ankara (?)). Bankok (?) relay to Hanoi.
JD-1: 6752 (D) Navy Trans. 11-25-41 (2)
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 1 INTERCEPTED DIPLOMATIC MESSAGES SENT BY THE JAPANESE GOVERNMENT BETWEEN JULY l AND DECEMBER 8, 1941)