Cropped from <a href="https://en.wikipedia.org/wiki/File:Demokratische_Linke_Landesarchiv_Baden-Wuerttemberg_Hauptstaatsarchiv_Stuttgart_J_153_Nr_2214_Bild_1_(1-1509225-1).jpg" class="extiw" title="w:File:Demokratische Linke Landesarchiv Baden-Wuerttemberg Hauptstaatsarchiv Stuttgart J 153 Nr 2214 Bild 1 (1-1509225-1).jpg">this poster</a>
<a href="//commons.wikimedia.org/wiki/User:JonahF" title="User:JonahF">JonahF</a>
<span class="int-own-work" lang="en">Own work</span>