"Day of Potsdam", 21 March 1933. procession of the SA, SS, the Stahlhelm and National Associations through the streets of Berlin from 8pm. (after act of state in the Garnison Church Potsdam and opening of the Reichstag in the Kroll opera house). - The torchlight procession in Potsdamer Strasse / Lützowstraße. Photo.