Civil flag of Prussia from 1701 to 1935. (<a rel="nofollow" class="external free" href="https://flagspot.net/flags/de-pr701.html">https://flagspot.net/flags/de-pr701.html</a>, <a rel="nofollow" class="external free" href="http://www.crwflags.com/fotw/flags/de-pr919.html">http://www.crwflags.com/fotw/flags/de-pr919.html</a>)
<a href="//commons.wikimedia.org/wiki/User:R-41~commonswiki" title="User:R-41~commonswiki">R-41</a>
2014-03-05 17:26:25
<span class="int-own-work" lang="en">Own work</span>