Location Babelsberger Str. 50 District Wilmersdorf Stone was laid 23 June 2015 Born 1909 in Escape 1939 Chile Arrested von 1938 in Sachsenhausen ("Schutzhaft") Survived Stolperstein Hans Rudolf Schweitzer Bild: Stolpersteine-Initiative CW, Hupka Stolperstein Hans Rudolf Schweitzer Bild: Stolpersteine-Initiative CW, Hupka