hanging flag of the German city of <a href="//commons.wikimedia.org/wiki/Category:Adenau" title="Category:Adenau">Adenau</a>
Stadt <a href="https://de.wikipedia.org/wiki/Adenau" class="extiw" title="de:Adenau">Adenau</a>
Unknown date<div style="display: none;">Unknown date</div>
<p><a rel="nofollow" class="external text" href="https://www.panoramio.com/photo/79744745">Stadtbeflaggung in Adenau</a><br>Stadler, Klemens; Deutsche Wappen; Band 2, Bremen 1966; S. 11
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