Soviet cosmonauts in the Kremlin

USSR. Moscow. 1964. Heroes of the Soviet Union, USSR pilot-cosmonauts Pavel Romanovich Popovich, Yuri Alekseyevich Gagarin, head of the Moscow Kremlin improvement service Lev Fedorovich Filippov, Heroes of the Soviet Union, USSR pilot-cosmonauts German Stepanovich Titov and Valery Fedorovich Bykovsky (from left to right) at the oak tree "Cosmos", planted on April 14, 1961 to commemorate the world's first space flight, completed by Yuri A. Gagarin on April 12, 1961. The exact date of the photo is unknown. Alexey Stuzhin/TASS