Stolperstein in Köln-Porz, Steinstraße Ecke Hauptstraße, Kazimierz Troc
<a href="//commons.wikimedia.org/wiki/User:Superbass" title="User:Superbass">Superbass</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>