Self portrait. Signed and dated 21 Dec 1917.
<bdi><a href="https://www.wikidata.org/wiki/Q1583381" class="extiw" title="d:Q1583381"><span title="German painter (1863-1940)">Hans von Faber du Faur</span></a>
</bdi>
1917-12-21
<a rel="nofollow" class="external text" href="https://www.zeller.de/">Auktionshaus Zeller</a>