Image made by <a href="https://en.wikipedia.org/wiki/User:R-41" class="extiw" title="en:User:R-41">en:User:R-41</a> of the Chinese air force roundel from 1920 to 1921. Based off of image at <a rel="nofollow" class="external free" href="http://www.geocities.com/cwlam2000hk/part1.htm">http://www.geocities.com/cwlam2000hk/part1.htm</a>
<ul><li>Originally from <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></li></ul>