The ambassadors of the four occupying powers France, USA, Great Britain, and the Soviet Union short before signing the Four-Power Agreement on Berlin on 3 September 1971 in the former building of the Allied Control Council in Berlin-Schöneberg. In the picture (l-r): Jean Sauvagnargues (France), Sir Roger Jackling (Great Britain), Pjotr Abrasimov (Soviet Union), and Kenneth Rush (USA).