Portrait of <a href="https://en.wikipedia.org/wiki/Nikolay_Bunge" class="extiw" title="w:Nikolay Bunge">Nikolay Bunge</a> (1823-1895)
<bdi><a href="https://en.wikipedia.org/wiki/en:Johann_K%C3%B6ler" class="extiw" title="w:en:Johann Köler"><span title="Estonian artist (1826-1899)">Johann Köler</span></a>
</bdi>
<a rel="nofollow" class="external text" href="http://www.muis.ee/portaal/museaalview/248492">Eesti Kunstimuuseum, EKM j 153/97 M 80</a>