<bdi><a href="https://en.wikipedia.org/wiki/en:Carl_Gustav_Carus" class="extiw" title="w:en:Carl Gustav Carus"><span title="German philosopher, physician, painter (1789-1869)">Carl Gustav Carus</span></a>
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1. <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=4010706">4010706</a> (sale 6636, lot 71)<br>2. <a rel="nofollow" class="external text" href="http://www.arcadja.com/auctions/de/private/carus_carl_gustav/kunstwerken/4960/0/">Villa Grisebach Auktionen, Berlin, 04.06.2015, lot 112 via ARCADJA auction results</a><br>3. <a rel="nofollow" class="external text" href="http://www.faz.net/aktuell/feuilleton/kunstmarkt/auktionsergebnisse-der-villa-grisebach-in-berlin-13644136/carl-gustav-carus-malte-13638529.html">FAZ</a><br>4. <a rel="nofollow" class="external text" href="http://collection.nationalmuseum.se/eMuseumPlus?service=ExternalInterface&amp;module=collection&amp;objectId=179389&amp;viewType=detailView">Nationalmuseum Stockholm</a>