Ensign of the Customs Department (Thailand). Based from <a href="//commons.wikimedia.org/wiki/File:Naval_Ensign_of_Thailand.svg" title="File:Naval Ensign of Thailand.svg">File:Naval Ensign of Thailand.svg</a>
<a href="//commons.wikimedia.org/wiki/User:Zscout370" title="User:Zscout370">Zscout370</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>