Flag used in Algeria during the State of Emir Abd el-Kader
<a href="//commons.wikimedia.org/wiki/User:%D9%85%D9%88%D8%B1%D9%8A%D8%B3%D9%83%D9%88" title="User:موريسكو">موريسكو</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>