Arthur Schopenhauer caricatured by <a href="//commons.wikimedia.org/wiki/Wilhelm_Busch" title="Wilhelm Busch">Wilhelm Busch</a>
<bdi><a href="https://en.wikipedia.org/wiki/en:Wilhelm_Busch" class="extiw" title="w:en:Wilhelm Busch"><span title="German painter, poet and cartoonist (1832-1908)">Wilhelm Busch</span></a>
</bdi>
No later than 1908
<a rel="nofollow" class="external free" href="http://www.ub.uni-frankfurt.de/archive/images/busch.jpg">http://www.ub.uni-frankfurt.de/archive/images/busch.jpg</a>