stumbling block for Erna Wolff, Heimstrasse 23, <a href="https://en.wikipedia.org/wiki/Kreuzberg" class="extiw" title="en:Kreuzberg">Berlin-Kreuzberg</a>, <a href="https://en.wikipedia.org/wiki/Germany" class="extiw" title="en:Germany">Germany</a>
<a href="//commons.wikimedia.org/wiki/User:FraCbB" title="User:FraCbB">FraCbB</a>
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<span class="int-own-work" lang="en">Own work</span>