A file of correspondence, reports and memoranda referring to the establishment of the Berlin air corridor, required in the aftermath of the Lincoln bomber incident. The documents discuss the evolution of talks regarding the air corridor, including an archive of four-party discussions regarding the air corridor dating back to 1945; how the Western allies and the Soviets were able to reach a compromise from two differing initial positions, with the West proposing six air corridors and the Soviets just one; and the subsequent compromise to establish three air corridors, as well as an agreement regarding the rules of flight. Other documents comment on the decision to incorporate West Germany into the talks; and the British move to exact reparations from the Soviet Union after their shooting down of a Lincoln bomber within the air corridor.