50 Pfennig <a href="https://en.wikipedia.org/wiki/Notgeld" class="extiw" title="en:Notgeld">"Notgeld" banknote</a> (emergency money) of <a href="https://en.wikipedia.org/wiki/Berlin" class="extiw" title="en:Berlin">Berlin</a>, distrikt <a href="https://en.wikipedia.org/wiki/Spandau" class="extiw" title="en:Spandau">Spandau</a> (1921), size: 55 mm x 105 mm.
Issued by the City of Berlin, reproduced by <a href="//commons.wikimedia.org/wiki/User:Palauenc05" title="User:Palauenc05">Palauenc05</a>
1921-09-09
Private archive