Nuvola-style British colonial flag of Hong Kong.
<a href="//commons.wikimedia.org/wiki/User:SiBr4" title="User:SiBr4">SiBr<sub>4</sub></a><br><a href="//commons.wikimedia.org/wiki/File:Nuvola_Pitcairn_flag.svg" title="File:Nuvola Pitcairn flag.svg">File:Nuvola Pitcairn flag.svg</a> by  <a href="//commons.wikimedia.org/w/index.php?title=User:Orzetto&amp;action=edit&amp;redlink=1" class="new" title="User:Orzetto (page does not exist)">Orzetto</a><br><a href="//commons.wikimedia.org/wiki/File:Flag_of_Hong_Kong_(1959-1997_3-5).svg" class="mw-redirect" title="File:Flag of Hong Kong (1959-1997 3-5).svg">File:Flag of Hong Kong (1959-1997 3-5).svg</a> by <a href="//commons.wikimedia.org/wiki/User:Fry1989" title="User:Fry1989">Fry1989</a>
CC BY-SA 3.0
Self-made, based on <a href="//commons.wikimedia.org/wiki/File:Nuvola_Pitcairn_flag.svg" title="File:Nuvola Pitcairn flag.svg">File:Nuvola Pitcairn flag.svg</a> (<a href="//commons.wikimedia.org/wiki/Template:LGPL" class="mw-redirect" title="Template:LGPL"><span style="font-family:monospace,monospace;">{{LGPL}}</span></a>) and <a href="//commons.wikimedia.org/wiki/File:Flag_of_Hong_Kong_(1959-1997_3-5).svg" class="mw-redirect" title="File:Flag of Hong Kong (1959-1997 3-5).svg">File:Flag of Hong Kong (1959-1997 3-5).svg</a> (<a href="//commons.wikimedia.org/wiki/Template:PD-UKGov" title="Template:PD-UKGov"><span style="font-family:monospace,monospace;">{{PD-UKGov}}</span></a>)