Austrian painter <a href="https://en.wikipedia.org/wiki/Ludwig_Koch_(painter)" class="extiw" title="w:Ludwig Koch (painter)">Ludwig Koch</a> (1866-1934) in his studio
<bdi><a href="https://www.wikidata.org/wiki/Q22806936" class="extiw" title="d:Q22806936"><span title="Austrian photographer">Josef Vinzens Jahudka</span></a>
</bdi>
1903-03-07
<a rel="nofollow" class="external text" href="http://anno.onb.ac.at/cgi-content/anno?aid=sus&amp;datum=19030307&amp;seite=11&amp;zoom=33">Sport und Salon, 7 March 1903</a>, digitized by Austrian National Library