tied by "Urga v Mongolii" (URGA in Mongolia, Tchilingirian & Stephen Fig.447) double ring cancel, repeated alongside, addressed to Peking, with Russian Post Office in Peking arrival on back, two different Chinese arrival 20 Jan 16 postmarks, "Zagran Pochta" (foreign mail) in blue Cyrillic, rectangular imprints of Dun-Fu-Yu firm on back, fine cover