<bdi><a href="https://en.wikipedia.org/wiki/en:Andreas_Achenbach" class="extiw" title="w:en:Andreas Achenbach"><span title="German artist (1815-1910)">Andreas Achenbach</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=5301354">5301354</a>