From: Tokyo (Toyoda)
September 24, 1941
Henceforth, we would like to have you make reports concerning vessels along the following lines insofar as possible:
1. The waters (of Pearl Harbor) are to be divided roughly into five sub-areas. (We have no objections to your abbreviating as much as you like.)
Area A. Waters between Ford Island and the Arsenal.
Area B. Waters adjacent to the Island south and west of Ford Island. (This area is on the opposite side of the Island from Area A.)
Area C. East Loch.
Area D. Middle Loch.
Area E. West Loch and the communicating water routes.
2. With regard to warships and aircraft carriers, we would like to have you report on those at anchor, (these are not so important) tied up at wharves, buoys and in locks. (Designate types and classes briefly. If possible we would like to have you make mention of the fact when there are two or more vessels along side the same wharf.)
ARMY 23260 Trans. 10/9/41 (S)
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 2 JAPANESE MESSAGES CONCERNING MILITARY
INSTALLATIONS, SHIP MOVEMENTS, ETC.)