1916 WWI POW censor cover from Russia to Tientsin, frankless and applied with Irkutsk PO censor circular h.s. in blue. Arrived Tientsin
1916 WWI POW censor cover from Russia to Tientsin, frankless and applied with Irkutsk PO censor circular h.s. in blue. Arrived Tientsin Russian PO (17 Sep).1916年一戰戰俘檢查封自俄國寄天津，無貼票，鈐伊爾庫次克檢查藍色圓戳。9.17抵天津俄局。
