Flag of Guanacaste, a province of the Costa Rica
<a href="//commons.wikimedia.org/w/index.php?title=User:Jolle&amp;action=edit&amp;redlink=1" class="new" title="User:Jolle (page does not exist)">Jaume Ollé</a>
2002-10-28
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Guanacaste_flag.gif" title="File:Guanacaste flag.gif">Guanacaste flag.gif</a>, <a rel="nofollow" class="external free" href="https://www.fotw.info/flags/cr-g-05.html">https://www.fotw.info/flags/cr-g-05.html</a>