<bdi><a href="https://www.wikidata.org/wiki/Q20926489" class="extiw" title="d:Q20926489"><span title="German painter (1740-1796)">Carl Ludwig Hackert</span></a>
</bdi>
<a href="https://en.wikipedia.org/wiki/Christie%27s" class="extiw" title="en:Christie's">Christie's</a>, LotFinder:  entry  <a rel="nofollow" class="external text" href="https://www.christies.com/LotFinder/lot_details.aspx?intObjectID=5915903">5915903</a> (sale 10712, lot 58, London, 7 July 2015)