Keywords: Lot-9795-13: Naval Gun Factory, Washington Navy Yard, Washington, D.C. Shown: observing the boring of guns. Francis Benjamin Johnson Collection. Cyanotype Print. Courtesy of the Library of Congress. Photographed through Mylar sleeve. (2016/03/04). Lot-9795-13: Naval Gun Factory, Washington Navy Yard, Washington, D.C. Shown: observing the boring of guns. Francis Benjamin Johnson Collection. Cyanotype Print. Courtesy of the Library of Congress. Photographed through Mylar sleeve. (2016/03/04). |