. "Correspondence with former Anti-Nazi resistance fighters and survivors of Sachsenhausen concentration camp Georg Spielmann and Rudolf Wunderlich regarding the opening of the Sachsenhausen memorial site and an invitation of Wiener Library representatives to the official ceremony."@en . . . . "WL3000/9/1/797" . . . . "4 letters"@en . . . "Correspondence with Komitee für die Einweihung der Mahn- und Gedenkstätte Sachsenhausen in der DDR"@en . . "This material has been digitised. Readers should book a reading room terminal to access it."@en . .