Alberta Secondary Highway road sign used in the 2000s.
<a href="//commons.wikimedia.org/w/index.php?title=User:MuzikMachine&amp;action=edit&amp;redlink=1" class="new" title="User:MuzikMachine (page does not exist)">MuzikMachine</a>
<span class="int-own-work" lang="en">Own work</span>; <a rel="nofollow" class="external text" href="https://www.aaroads.com/shields/show.php?image=AB19845471">Photo</a>