<bdi><a href="https://en.wikipedia.org/wiki/en:Paul_Klee" class="extiw" title="w:en:Paul Klee"><span title="Swiss artist (1879-1940)">Paul Klee</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=5258470">5258470</a>