<bdi><a href="https://en.wikipedia.org/wiki/en:Christian_Rohlfs" class="extiw" title="w:en:Christian Rohlfs"><span title="German artist (1849-1938)">Christian Rohlfs</span></a>
</bdi>
1. <a rel="nofollow" class="external text" href="http://www.villa-grisebach.de">Villa Grisebach Auktionen</a><br>2. <a href="https://en.wikipedia.org/wiki/en:Bridgeman_Art_Library" class="extiw" title="w:en:Bridgeman Art Library"><span title="library">Bridgeman Art Library</span></a>:  Object <a rel="nofollow" class="external text" href="https://www.bridgemanimages.co.uk/en/asset/825997">825997</a><br>