LC-DIG-HEC-10062: U.S. Naval Gun Factory, Washington Navy Yard, Washington, D.C. Various operations in making cartridge cases. Photographed by Harris & Ewing, 1917. (7/10/2015).
via Flickr http://flic.kr/p/vTFD3x
From Flickr: “LC-DIG-HEC-10062” by Photograph Curator
