1895 Ljubljana earthquake by Helfer
<bdi><a href="https://www.wikidata.org/wiki/Q46103364" class="extiw" title="d:Q46103364">Wilhelm Helfer</a>
</bdi>
<a rel="nofollow" class="external free" href="http://www.nuk.uni-lj.si/razstave/47581440/potres.html">http://www.nuk.uni-lj.si/razstave/47581440/potres.html</a>