Serbian  machine-gun section in WWl,Maxim МG 11 
Photo taken in:<a rel="nofollow" class="external text" href="http://www.muzej.mod.gov.rs/">Military museum Belgrade</a>
<a href="//commons.wikimedia.org/wiki/User:Boksi" class="mw-redirect" title="User:Boksi">Boksi</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>