Text the library:
Centennial Library Reference Desk:
Rampart Range Library Reference Desk:
"Kartograph" by Department of Defense. Department of the Army. Office of the Chief Signal Officer. (09/18/1947 - 02/28/1964) - http://www.archives.gov/research_room/arc/ - ARC Identifier: 531175. Licensed under Public Domain via Wikimedia Commons.
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