<b>Carl August Koch</b> (1845–1897), Swiss photographer.
Unknown photographer
<a href="https://de.wikipedia.org/wiki/Photographische_Korrespondenz" class="extiw" title="de:Photographische Korrespondenz">Photographische Correspondenz</a>, 1897, 34. Jg., Nr. 437, S. 81<br><small>( <a rel="nofollow" class="external free" href="http://anno.onb.ac.at/cgi-content/anno-plus?aid=phc&amp;datum=1897&amp;page=99&amp;size=45">http://anno.onb.ac.at/cgi-content/anno-plus?aid=phc&amp;datum=1897&amp;page=99&amp;size=45</a> )</small>