The photograph shows an Allied control point at the Berlin zonal border, identifiable by a large sign post indicating British, French, and US checkpoints and directing all persons to report to their respective control stations. In the background, another British sign requesting presentation of identity documents is visible; a military truck stands ready. The simple wooden construction of the control facility and the multilingual signage illustrate the provisional yet strictly regulated nature of Allied border control in divided Berlin. The checkpoint exemplifies the coexistence of the three Western powers and the four-sector structure of the city firmly established during the Cold War, in which every movement between zones was subject to military control.