Polish infantry during <a href="https://en.wikipedia.org/wiki/Battle_of_Warsaw_(1920)" class="extiw" title="en:Battle of Warsaw (1920)">Battle of Warsaw 1920</a>
unknown-anonymous
1920-08
<a href="https://pl.wikipedia.org/wiki/Centralne_Archiwum_Wojskowe" class="extiw" title="pl:Centralne Archiwum Wojskowe">Centralne Archiwum Wojskowe</a>