The University of Iowa's Center for the Book created the archival paper used in the new encasements for the Charters of Freedom. The custom-made paper, derived from American-grown cotton, was designed ...
Vogt-O'Connor, Diane and van der Reyden, Dianne L. 1996. "Storing Archival Paper-Based Materials - 19/15." In Conserve O Gram. 1–4. National Park Service.