Banner of Glostrup Municipality in Denmark, according to <a rel="nofollow" class="external autonumber" href="https://www.crwflags.com/fotw/flags/dk-hs-gl.html">[1]</a>
<a href="//commons.wikimedia.org/wiki/User:Flagvisioner" title="User:Flagvisioner">Flagvisioner</a>
2022-06-11
<span class="int-own-work" lang="en">Own work</span>