Natchitoches Parish Route 547 shield in Louisiana. Based upon <a href="//commons.wikimedia.org/wiki/File:US_DOT_FHWA_MUTCD_SHS_2004_3-7_M1-6_450x450mm_00.svg" title="File:US DOT FHWA MUTCD SHS 2004 3-7 M1-6 450x450mm 00.svg">Image:US_DOT_FHWA_MUTCD_SHS_2004_3-7_M1-6_450x450mm_00.svg</a>. Edited in <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="w:Inkscape">w:Inkscape</a>.
<a href="//commons.wikimedia.org/wiki/User:Fredddie" title="User:Fredddie">Fredddie</a>
<span class="int-own-work" lang="en">Own work</span>