Five face masks with rubber insulators, probably British, 1914-1918 Five face masks with rubber insulators 1914-1918
Respirator, British, by Barringer, Wallis and Manners Ltd., 1915-1918 Respirator, British, by Barringer 1915-1918
Gas mask with container, German make, leather, 1915-1918 Gas mask with container, Germany, 1915-1918 1915-1918