<bdi><a href="https://en.wikipedia.org/wiki/en:Nicholas_Roerich" class="extiw" title="w:en:Nicholas Roerich"><span title="Russian painter, writer, archaeologist and philosopher (1874–1947)">Nicholas Roerich</span></a>
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<a rel="nofollow" class="external text" href="https://www.lot-tissimo.com/de/i/9224757/p/23/">Van Ham Kunstauktionen, 15.05.2015, Los 789 via Lot-tissimo</a>