Proper noun
West Berlin
(historical, 1949–1990) The American, British and French sectors of Berlin between 1949 and 1990.
After the Berlin Blockade transit trains (German Transitzüge main) would leave and enter West Berlin only via one line through Berlin-Wannsee railway station (W) and Potsdam Griebnitzsee railway station (E). Source: Internet
After further questions from journalists, he confirmed that the regulations included the border crossings through the Wall into West Berlin, which he had not mentioned until then. Source: Internet
All Eastern streets, bridges, paths, windows, doors, gates, and sewers opening to West Berlin were systematically sealed off by walls, concrete elements, barbed wire, and/or bars. Source: Internet
Another form of traffic between East and West Berlin was the transfer of West Berlin's sewage into East Berlin and East Germany through the sewer pipes built in the late 19th and early 20th centuries. Source: Internet
After the 1972 agreements, new crossings were opened to allow West Berlin waste to be transported into East German dumps, as well as some crossings for access to West Berlin's exclaves (see Steinstücken ). Source: Internet
Air traffic was the only connection between West Berlin and the Western world that was not directly under East German control. Source: Internet