<bdi><a href="https://www.wikidata.org/wiki/Q1040249" class="extiw" title="d:Q1040249"><span title="German painter (1810-1889)">Robert Kummer</span></a>
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<a rel="nofollow" class="external text" href="http://www.lempertz-online.de/gldet.asp?v=k1026400010080010300011&amp;mkat=&amp;mablos=&amp;msb=&amp;martist=">Lempertz, Köln, 20.03.2013, lot 104</a>