This file is a work of a U.S. Army soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
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2010-12-26 15:42 CharleyHart 716×574× (118892 bytes) {{Information |Description = U.S. Army Signals Intelligence Service cryptologists at work at Arlington Hall, Virginia circa 1943 |Source = U.S. Army archives |Date = circa 1943 |Author = U.S. Army photographer |Permission
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