This photograph was published in numerous sources, each with different description:
<ul><li><a href="https://en.wikipedia.org/wiki/Battle_of_the_Bzura" class="extiw" title="en:Battle of the Bzura">Battle of the Bzura</a>: Polish <a href="https://en.wikipedia.org/wiki/cavalry" class="extiw" title="w:cavalry">cavalry</a> in <a href="https://en.wikipedia.org/wiki/Sochaczew" class="extiw" title="w:Sochaczew">Sochaczew</a> in 1939<sup id="cite_ref-Zawilski_1-1" class="reference"><a href="#cite_note-Zawilski-1">[1]</a></sup>.</li>
<li>Cavalry of <a href="https://en.wikipedia.org/wiki/en:Pozna%C5%84_Army" class="extiw" title="w:en:Poznań Army">Poznań Army</a> in fight in <a href="https://en.wikipedia.org/wiki/en:Uniej%C3%B3w" class="extiw" title="w:en:Uniejów">Uniejów</a> region<sup id="cite_ref-Bauer_2-0" class="reference"><a href="#cite_note-Bauer-2">[2]</a></sup>.</li>
<li><a href="https://en.wikipedia.org/wiki/en:Bydgoszcz" class="extiw" title="w:en:Bydgoszcz">Bydgoszcz</a>, September 1939<sup id="cite_ref-Gowin_3-0" class="reference"><a href="#cite_note-Gowin-3">[3]</a></sup>.</li>
<li>Polish cavalry, September 1939<sup id="cite_ref-MFA_4-0" class="reference"><a href="#cite_note-MFA-4">[4]</a></sup>.</li></ul>
September 1939<div style="display: none;">date QS:P571,+1939-09-00T00:00:00Z/10</div>
<ul><li>Self-scanned (<a href="//commons.wikimedia.org/wiki/User:Jarekt" title="User:Jarekt">user:Jarekt</a>)</li>
<li>Restored version of <a href="//commons.wikimedia.org/wiki/File:Polish_cavalry_in_Sochaczew_(1939).jpg" title="File:Polish cavalry in Sochaczew (1939).jpg">Image:Polish cavalry in Sochaczew (1939).jpg</a> with cropping and some artifacts/scratches addressed.</li></ul>