Keywords: Lot-9795-6: Naval Gun Factory, Washington Navy Yard, Washington, D.C. Shown: observing gun manufacturing. Francis Benjamin Johnson Collection. Cyanotype Print. Courtesy of the Library of Congress. Photographed through Mylar sleeve. (2016/03/04). Lot-9795-6: Naval Gun Factory, Washington Navy Yard, Washington, D.C. Shown: observing gun manufacturing. Francis Benjamin Johnson Collection. Cyanotype Print. Courtesy of the Library of Congress. Photographed through Mylar sleeve. (2016/03/04). |