Symbol of <a href="https://en.wikipedia.org/wiki/National_Renewal_Alliance" class="extiw" title="en:National Renewal Alliance">ARENA</a> political party from the 1970s
ARENA
Vectorized version of <a href="//commons.wikimedia.org/wiki/File:Arena_Brasil.png" title="File:Arena Brasil.png">File:Arena Brasil.png</a>