polworld.tumblr.com/post/185014365294/
polworld.tumblr.com/post/185035098044/
polworld.tumblr.com/post/185072760144/
German soldiers and their mule wearing gas mask - 1916
vintageeveryday:Yellow, Chicago, August 1975. Photographed by
polworld.tumblr.com/post/185174675994/