Munition workers at HM Factory Gretna unloading the nitrating pans
<a href="//commons.wikimedia.org/wiki/User:Devilsporridge_LN" class="mw-redirect" title="User:Devilsporridge LN">Devilsporridge LN</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>