Date of this Version
Office of the Assistant Chief of Air Staff, Intelligence, HQ, US Army Air Forces and Photographic Interpretation Center, Division of Naval Intelligence, Navy Department: April 1944
This report represents the state-or-the-art for photographic intelligence in April 1944 as understood by the Army Air Forces/Navy photographic intelligence effort in the Washington, DC, area. It gives data needed by photo interpreters and service members working with photographic intelligence. It includes mathematical, technical, and organizational data and aids for identification of various types of installations, structures, ships, aircraft, and fighting vehicles.
This report is listed in WorldCat under Accession Number: OCLC: 61437289.
PROCEDURE IN DETERMINING HEIGHT OF OBJECTS FROM SHADOW LENGTHS ON AERIAL PHOTOGRAPHS -- Mathematical method
GRAPHIC METHOD OF DETERMINING HEIGHT OF OBJECTS FROM SHADOW LENGTHS ON AERIAL PHOTOGRAPHS
GRAPHIC METHOD OF DETERMINING DIRECTION OF NORTH FROM DIRECTION OF SHADOWS ON AERIAL PHOTOGRAPHS