"Image depicts a chart showing the basic staff organization of the US Army during World War One. It illustrates the hierarchy from the Corps to the Division levels, including positions such as Chief of Staff and Technical Staff. Photograph taken by the Signal Corps."

Royalty-Free Standard Commercial licenses are granted for worldwide, non-exclusive and perpetual use, unless specifically noted otherwise. All Royalty-Free transactions are final. The Royalty-Free Standard Commercial license has no limitations and covers up to 15 users.