Executions of Jews by German army mobile killing units (Einsatzgruppen) near <a href="https://en.wikipedia.org/wiki/Ivanhorod" class="extiw" title="w:Ivanhorod">Ivangorod</a> Ukraine. The photo was mailed from the Eastern Front to Germany and intercepted at a Warsaw post office by a member of the Polish resistance collecting documentation on Nazi war crimes. The original print was owned by <a href="https://pl.wikipedia.org/wiki/Tadeusz_Mazur" class="extiw" title="pl:Tadeusz Mazur">Tadeusz Mazur</a> and <a href="https://en.wikipedia.org/wiki/Jerzy_Tomaszewski_(photographer)" class="extiw" title="w:Jerzy Tomaszewski (photographer)">Jerzy Tomaszewski</a> and now resides in Historical Archives in Warsaw. The original German inscription on the back of the photograph reads, "Ukraine 1942, Jewish Action [operation], Ivangorod."
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span> (Sometimes mistakenly attributed to <a href="https://en.wikipedia.org/wiki/Jerzy_Tomaszewski_(photographer)" class="extiw" title="w:Jerzy Tomaszewski (photographer)">Jerzy Tomaszewski</a> who discovered it.)</div>
1942<div style="display: none;">date QS:P571,+1942-00-00T00:00:00Z/9</div>
<ul><li>Original publication: <cite class="book" style="font-style:normal">Zwiazek Bojowników o Wolnosc i Demokracje / League of Fighters for Freedom and Democracy / Union des Combattants pour la Liberté et la Démocratie / Verband der Kämpfer für Freiheit und Demokratie (1959)      <i> <a rel="nofollow" class="external text" href="http://www.abebooks.com/1939--1945-Forgotten-League-Fighters-Freedom/1061090028/bd">1939-1945. We have not forgotten / Nous n'avons pas oublié / Wir haben es nicht vergessen.</a></i>, <a href="https://en.wikipedia.org/wiki/en:Warsaw" class="extiw" title="w:en:Warsaw"><span title="capital and largest city of Poland">Warsaw</span></a>:  Polonia, pp. 267  <small>no ISBN</small></cite> (multilingual book)<sup id="cite_ref-Spiegel_3-3" class="reference"><a href="#cite_note-Spiegel-3">[3]</a></sup><sup id="cite_ref-Janina_Struk_2-6" class="reference"><a href="#cite_note-Janina_Struk-2">[2]</a></sup></li>
<li><i><bdi lang="pl">Z dziejów wojny wyzwoleńczej narodu polskiego, 1939-1945</bdi></i>, <a href="https://en.wikipedia.org/wiki/Wydawnictwo_MON" class="extiw" title="en:Wydawnictwo MON">Wydawnictwo Ministerstwa Obrony Narodowej</a>, <time class="dtstart" datetime="1960" lang="en" dir="ltr" style="white-space:nowrap">1960</time>, p. 282</li></ul>