Flag of the State of Piauí, Brazil.
<a href="//commons.wikimedia.org/wiki/User:E2m" title="User:E2m">E2m</a>, <a href="//commons.wikimedia.org/wiki/User:Giro720" title="User:Giro720">Giro720</a>
2008-03-23
<span class="int-own-work" lang="en">Own work</span>