Signing of the Nuclear Test Ban Treaty

USSR. Moscow. August 8, 1963. Deputy Chairman of the Council of Ministers of the USSR Konstantin Nikolaevich Rudnev (third from left in the foreground) and Canadian Ambassador to the USSR Arnold Cantwell Smith (right) after the signing ceremony of the Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space, and Under Water. Valentin Mastyukov/TASS