IV International Tchaikovsky Competition in Moscow

June 1970. USSR. Moscow. Members of the jury of cellists: Soviet composer Vladimir Aleksandrovich Vlasov, East German cellist Bernard Günther, West German cellist Ludwig Hoelscher and Bulgarian cellist Konstantin Hristov Popov (from left to right) during the audition of contestants at the IV International Tchaikovsky Competition in the Column Hall of the House of Unions. The exact date of the photo is unknown. Alexander Konkov, Valentin Kuzmin/TASS