Crossing, mixed, close parallel lines
<a href="//commons.wikimedia.org/wiki/User:Useddenim" title="User:Useddenim">Useddenim</a>
2011-09-26
Own work based on: <a href="//commons.wikimedia.org/wiki/File:BSicon_vBUE.svg" title="File:BSicon vBUE.svg">BSicon vBUE.svg</a>