<bdi><a href="https://www.wikidata.org/wiki/Q4190213" class="extiw" title="d:Q4190213"><span title="German painter (1809-1891)">Carl Friedrich Seiffert</span></a>
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<a rel="nofollow" class="external text" href="https://www.grisebach.com/">Villa Grisebach Auktionen, Berlin, 25. Oktober 2018, lot 409</a>