Just a quick note.<br/><br/>There's no Berlin Wall yet -- not until '61.<br/><br/>In this era the sectors are lines on a map. There are checkpoints for vehicles throughout the city, but a pedestrian with time on their hands could walk all across Berlin.<br/><br/>This freedom of movement would gradually decline throughout the 50's -- but even making it to West Berlin would be little help for most, as Berlin was in the middle of the Soviet Sector of Germany, what will be East Germany (GDR in English, DDR in German) in just a few years.