An icon from the OOjs UI MediaWiki lib.
<a href="//commons.wikimedia.org/wiki/User:Koreller" title="User:Koreller">Koreller</a> and <a class="external free" href="https://phabricator.wikimedia.org/diffusion/GOJU/browse/master/AUTHORS.txt">https://phabricator.wikimedia.org/diffusion/GOJU/browse/master/AUTHORS.txt</a>
<span class="int-own-work" lang="en">Own work</span> and <a class="external text" href="https://phabricator.wikimedia.org/diffusion/GVED/browse/master/lib/oojs-ui/themes/mediawiki/images/icons/">lib/oojs-ui/themes/mediawiki/images/icons/</a>