1 December 1941
The four offices in London, Hongkong, Singapore and Manila have been instructed to abandon the use of the code machines and to dispose of them. The machine in Batavia has been returned to Japan. Regardless of the contents of my Circular message #2447*, the U. S. (office) retains the machines and the machine codes.
Please relay to France, Germany, Italy, and Turkey from Switzerland; and to Brazil, Argentina, and Mexico from Washington.
JD-1: 6984 (D) Navy Trans. 12-1-41 (S-TT)
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 1 INTERCEPTED DIPLOMATIC MESSAGES SENT BY THE JAPANESE GOVERNMENT BETWEEN JULY l AND DECEMBER 8, 1941)