Stadtplan Berlin (Miniplan): Mitte, West-City, Messe + ICC, S- und U-Bahnnetz, Straßenverzeichnis : Gauglitz, Gerd: Amazon.de: Bücher
German at Portsmouth on Twitter: "A 1987 GDR map of East Berlin, with West Berlin appearing as a blank yellow space punctuated by verdant green woodland #TagderDeutschenEinheit https://t.co/lZHjL0JYKP" / Twitter