Hanging flag of the austrian city of <a href="https://en.wikipedia.org/wiki/Mattersburg" class="extiw" title="en:Mattersburg">Mattersburg</a>
<a href="//commons.wikimedia.org/wiki/User:J%C3%BCrgen_Krause" title="User:Jürgen Krause">Jürgen Krause</a>
Unknown date<div style="display: none;">Unknown date</div>
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