XXIII Congress of the CPSU in Moscow

USSR. Moscow. April 7, 1966. Chairman of the Presidium of the Siberian Branch of the USSR Academy of Sciences Mikhail Alekseevich Lavrentyev, President of the Academy of Sciences of the Georgian SSR Nikolai Ivanovich Muskhelishvili and Vice President of the USSR Academy of Sciences Nikolai Nikolaevich Semenov (from left to right) during a conversation in the Kremlin Palace of Congresses during a break between sessions of the 23rd Congress of the Communist Party of the Soviet Union. Evgeny Kassin, Vladimir Savostyanov/TASS