<bdi><a href="https://en.wikipedia.org/wiki/en:Albert_Bierstadt" class="extiw" title="w:en:Albert Bierstadt"><span title="American painter">Albert Bierstadt</span></a>
</bdi>
Unknown date<div style="display: none;">Unknown date</div>
<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=5508955">5508955</a> (sale 2485, lot 56, Christie's Special Exhibition Gallery, 30 November 2011)