Imperial Ensign of the Vietnamese Nguyễn dynasty, used between 1802 and 1955.
<a href="//commons.wikimedia.org/wiki/User:Goran_tek-en" title="User:Goran tek-en">Goran tek-en</a> (source), <a href="//commons.wikimedia.org/wiki/User:Oppashi" class="mw-redirect" title="User:Oppashi">Oppashi</a> (derivative work)
1802
<ul><li><a href="//commons.wikimedia.org/wiki/File:Nguyen_Imperial_Pennon_(m4).gif" title="File:Nguyen Imperial Pennon (m4).gif">File:Nguyen Imperial Pennon (m4).gif</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Vietnamese_Dragon_blue.svg" title="File:Vietnamese Dragon blue.svg">File:Vietnamese Dragon blue.svg</a></li></ul>