Police Pennant of the Free City of Danzig
<a href="//commons.wikimedia.org/wiki/User:Sodacan" title="User:Sodacan">Sodacan</a>
CC BY-SA 4.0
Own work  using: <a rel="nofollow" class="external autonumber" href="https://www.fotw.info/flags/de-dz~pl.html">[1]</a> <a rel="nofollow" class="external autonumber" href="https://www.danzig.org/en/wp-gallery/358/wp-gallery/?cat_id=772&amp;gallery-img-id=12913">[2]</a>