The signature of <a href="https://en.wikipedia.org/wiki/Cyprian_Norwid" class="extiw" title="en:Cyprian Norwid">Cyprian Kamil Norwid.</a>
<bdi><a href="https://en.wikipedia.org/wiki/en:Cyprian_Norwid" class="extiw" title="w:en:Cyprian Norwid"><span title="Polish poet, dramatist, painter, and sculptor">Cyprian Norwid</span></a>
</bdi>
Uploaded to the <a href="https://pl.wikipedia.org/wiki/" class="extiw" title="pl:">Polish Wikipedia</a> as <a href="https://pl.wikipedia.org/wiki/Grafika:Autograf_norwida.jpg" class="extiw" title="pl:Grafika:Autograf norwida.jpg">Autograf norwida.jpg</a> by <a href="https://pl.wikipedia.org/wiki/Wikipedysta:Niki_K" class="extiw" title="pl:Wikipedysta:Niki K">Niki K</a> and converted to <a href="https://en.wikipedia.org/wiki/PNG" class="extiw" title="w:PNG">PNG</a> by <a href="//commons.wikimedia.org/wiki/User:Rfl" title="User:Rfl">Rafał Pocztarski</a>.