1878 Urga to Peking. Dun-Fu-Yu red band cover, f.w. Russian Coat of Arms 5k in pair on reverse, tied by scarce pen-cancellation.
1878 Urga to Peking. Dun-Fu-Yu red band cover, f.w. Russian Coat of Arms 5k in pair on reverse, tied by scarce pen-cancellation. Pen-cancellation was the earliest type of Urga Russian PO cancellation with only a handful of examples exist. A rarity.1878年庫倫寄北京。東富有紅條封，背貼俄國軍徽圖5戈比雙連，以黑筆劃銷。以筆劃銷是庫倫俄局最早的之銷票形式，存世例子甚為稀罕。
