A loudspeaker van from the West Berlin organisation SAS (Studio am Stacheldraht or Studio at the Barbed Wire) arrives at the Berlin Wall where a new section is being built, 23rd July 1962. Shortly after this, an East German police car turned up, blasting music and Communist propaganda from its loudspeakers. (Photo by Keystone/Hulton Archive/Getty Images)  Das Studio am Stacheldraht (SaS) war eine mobile Sendestation, die auf Initiative des damaligen Innensenator von West Berlin Joachim Lipschitz