<bdi><a href="https://en.wikipedia.org/wiki/en:Ludwig_Knaus" class="extiw" title="w:en:Ludwig Knaus"><span title="German artist (1829–1910)">Ludwig Knaus</span></a>
</bdi>
1889<div style="display: none;">date QS:P571,+1889-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external text" href="http://www.kollerauktionen.ch/de/asp/search.asp?pg=115&amp;ps=15">Galerie Koller, 18.03.2013, lot 3236</a>