Alberta Highway 28X road sign based on 1970s series appearance.
<a href="//commons.wikimedia.org/wiki/User:Svgalbertian" title="User:Svgalbertian">Svgalbertian</a>
Copied from <a href="//commons.wikimedia.org/wiki/File:Alberta_Highway_1X_(1970s).svg" title="File:Alberta Highway 1X (1970s).svg">File:Alberta Highway 1X (1970s).svg</a>