Celebrating May 1st in Moscow

USSR. Moscow. American astronauts Donald Kent Slayton, Thomas Patten Stafford, A. A. Leonov's daughters Victoria and Oksana, Heroes of the Soviet Union, USSR pilot-cosmonauts Alexei Arkhipovich Leonov, Anatoly Vasilyevich Filipchenko and Vladimir Aleksandrovich Shatalov (from left to right in the foreground) and American astronaut Vance DeVoe Brand (in the background) during May Day celebrations on Red Square. Valentin Kunov, Albert Pushkarev/TASS