From: Tokyo (Togo)
November 28, 1941
Re your message #243. [a]
Secret outside the Department.
Intelligences of this kind which are of major importance, please transmit to us in the following manner:
1. When battleships move out of the harbor if we report such movement but once a week the vessels, in that interval, could not only be in the vicinity of the Hawaiian Islands, but could also have travelled far. Use your own judgment in deciding on reports covering such movements.
2. Report upon the entrance or departure of capital ships and the length of time they remain at anchor from the time of entry into the port until the departure.
[a] Available in code under study.
ARMY 25880 JD-7158 Trans. 12/8/41 (S)
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 2 JAPANESE MESSAGES CONCERNING MILITARY
INSTALLATIONS, SHIP MOVEMENTS, ETC.)