Right parallel line crossing over left line from left back, all out of use
<a href="//commons.wikimedia.org/wiki/User:AlgaeGraphix" title="User:AlgaeGraphix">AlgaeGraphix</a>
2020-01-07
<a href="//commons.wikimedia.org/wiki/File:BSicon_vSTRo-STR%2Brg.svg" title="File:BSicon vSTRo-STR+rg.svg">File:BSicon_vSTRo-STR+rg.svg</a>