Replacement of the Stone Wall with a Concrete Wall (July 1, 1963) Starting in 1963, portions of the original stone Wall were replaced with concrete. This photo shows work being done at Bernauer Straße. The two signs on the right are still within the Western sector – but just barely. One warns: "End of the French sector"; the other issues the following condemnation: “Roadblock caused by the Wall of Shame.” Photo by Klaus Lehnartz.