Wye, to corner 1 from right &amp; forward mirrored relating to the x-axis
<a href="//commons.wikimedia.org/wiki/User:Base" title="User:Base">Base</a>
2016-07-27
<span class="int-own-work" lang="en">Own work</span>, derivate from <a href="//commons.wikimedia.org/wiki/File:BSicon_WYE1%2Brf.svg" title="File:BSicon WYE1+rf.svg">BSicon WYE1+rf.svg</a>