Postage stamp of the USSR, 1975. 100 years since the birth of KF Yuon Postage stamp of the USSR, 1975. 100 years since the birth of KF Yuon Related Posts:USSR Postage stamps by Vasily ZavyalovSoviet artist Konstantin Yuon 1875-1958Soviet artist Boris Milovidov 1902-1975Soviet artist Askhat Safargalin 1922-1975Soviet Armenian artist Minas Avetisyan 1928-1975Soviet Georgian artist Elena Akhvlediani 1901-1975