U.S. Constitution Moved To National Archives -- A military escort carries the Constitution of the United States into the National Archives building here today after its transfer from the Library of Congress. In background is the armored car in which the priceless documents were transported under military guard. The documents are encased in six helium-filled cases and will be permanently housed in what is believed to be the World's largest safe. December 13, 1952. (Photo by AP Wirephoto).