Historical map of Memelland and the northern part of East Prussia.
<p><a href="//commons.wikimedia.org/wiki/User:W2eK" title="User:W2eK">W2eK</a> 
</p>
<ul><li>derivative work: <a href="//commons.wikimedia.org/wiki/User:David1010" title="User:David1010">David1010</a></li></ul>
CC BY-SA 3.0
<a href="//commons.wikimedia.org/wiki/File:Memelland_1923-1939.png" title="File:Memelland 1923-1939.png">File:Memelland 1923-1939.png</a>