Alberta highways road marker shield used in the 1970s.
The original uploader was <a href="https://en.wikipedia.org/wiki/User:Svgalbertian" class="extiw" title="wikipedia:User:Svgalbertian">Svgalbertian</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
<p>Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons by <a href="//commons.wikimedia.org/wiki/User:Svgalbertian" title="User:Svgalbertian">Svgalbertian</a>.
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Derivative works of this file:  <a href="//commons.wikimedia.org/wiki/File:Alberta_Highway_2.svg" title="File:Alberta Highway 2.svg">Alberta Highway 2.svg</a>