<bdi>Attributed to <a href="https://www.wikidata.org/wiki/Q1040249" class="extiw" title="d:Q1040249"><span title="German painter (1810-1889)">Robert Kummer</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.hampel-auctions.com/a/Carl-Robert-Kummer-1810-Dresden-1889-zug.html?a=108&amp;s=527&amp;id=539381">Hampel Auktionen, München, 7. Dezember 2016, Los 920</a>