Sign left to the entrance of <i>Poppelsdorfer Allee 55</i> in <a href="//commons.wikimedia.org/wiki/Bonn" title="Bonn">Bonn</a>, Germany, in memory of <a href="https://en.wikipedia.org/wiki/Kurt_Wolff" class="extiw" title="en:Kurt Wolff">en:Kurt Wolff</a>.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130450256@N03">Janko Hoener</a> from Bonn, Germany
CC BY-SA 4.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130450256@N03/20093136645/">Angebrachtes Schild an der Poppelsdorfer Allee 55 in Erinnerung an Kurt Wolff</a>