Parallel lines STR and KBFxe
original PD image by <a href="//commons.wikimedia.org/w/index.php?title=User_Lantus&amp;action=edit&amp;redlink=1" class="new" title="User Lantus (page does not exist)">Lantus</a>, modified by <a href="//commons.wikimedia.org/w/index.php?title=User:Tve4&amp;action=edit&amp;redlink=1" class="new" title="User:Tve4 (page does not exist)">Tve4</a>
<a href="//commons.wikimedia.org/wiki/File:BSicon_vSTR-BHF.svg" title="File:BSicon vSTR-BHF.svg">BSicon vSTR-BHF.svg</a>