This is the official flag used by the City Government of Butuan.
<a href="//commons.wikimedia.org/w/index.php?title=User:Historyadororig&amp;action=edit&amp;redlink=1" class="new" title="User:Historyadororig (page does not exist)">Historyadororig</a>
2014-05-17 08:46:21
<span class="int-own-work" lang="en">Own work</span>