1910 Double registered cover posted at Train PO to Pekeng, f.w. Hsuan Tung 2c + 3c + 7c, tied by "No . 1 / From Tongku to Peking Postal
1910 Double registered cover posted at Train PO to Pekeng, f.w. Hsuan Tung 2c + 3c + 7c, tied by "No . 1 / From Tongku to Peking Postal Car" circular h.s, alongsie withh circled AR mark. Arrived Peking (14 Jan).1910年火車郵局投遞寄北京之雙掛號封，貼宣統2分 + 3分 + 7分，銷“第一 / 由塘沽至北京 / 郵政信車”圓戳，旁鈐AR章。1.14抵北京。
