Picture of <a href="https://en.wikipedia.org/wiki/Hans_von_Milde" class="extiw" title="w:Hans von Milde">Hans von Milde</a> (1857), Austrian baritone.
<bdi><a href="//commons.wikimedia.org/wiki/Category:19th-century_unidentified_photographers" title="Category:19th-century unidentified photographers">Unidentified photographer</a>
</bdi>
1857 (published 1901)
Scan from the book <i>Briefe in Poesie und Prosa von Peter Cornelius an Theodor und Rosa von Milde</i> (1901) page 48. Author: Peter Cornelius (1824-1874); Editor: Natalie von Milde (1850-1906)