| Unidentified photographer Chain screens on steel helmet to protect soldiers' eyes from fragments of shell, rock, etc.; manufactured by E.J. Codd Company, Baltimore, Maryland. E. J. Codd Company 1918 (ca) Gelatin silver print National Archives and Records Administration Still Picture Records Section, Special Media Archives Services Division (NWCS-S), National Archives at College Park, 8601 Adelphi Road, College Park, MD, 20740-6001. ARC Identifier 533656 / Local Identifier 165-WW-192B(3) LL/32907
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