Based off pictures found at the following links: <a rel="nofollow" class="external autonumber" href="http://shields.aaroads.com/salespage.php?state=AZ">[1]</a>;<a rel="nofollow" class="external autonumber" href="http://shields.aaroads.com/thumbs.php?state=AZ">[2]</a>. A 1941 Specification Arizona State Route Shield, traced from a picture of a real shield and sized to match <a href="//commons.wikimedia.org/wiki/File:US_66_Arizona_1958_West.svg" class="mw-redirect" title="File:US 66 Arizona 1958 West.svg">File:US 66 Arizona 1958 West.svg</a>.
<a href="//commons.wikimedia.org/wiki/User:White_Star_Line_Fan" class="mw-redirect" title="User:White Star Line Fan">Matthew Anderson</a> (based on an original .PNG format picture found at the AARoads shield gallery.)
<a href="//commons.wikimedia.org/wiki/File:Arizona_XX_1956.svg" title="File:Arizona XX 1956.svg">File:Arizona_XX_1956.svg</a><a rel="nofollow" class="external autonumber" href="http://www.sharlot.org/archives/maps/map810.1950.html">[3]</a><a rel="nofollow" class="external autonumber" href="http://shields.aaroads.com/show.php?image=AZ19570881">[4]</a>