1913年北京参议院秘书厅寄本埠中式公函封1件,贴伦敦版蟠龙加盖宋体中华民国1分1枚,销北京二年三月二十九腰框戳,邮戳清晰,保存完好,少见ChinaPostal HistoryRepublic of China1913 (29 Mar.) Official cover from The Peking Senate Secretary room sent to local, bearing London print C.I.P. overprinted R.O.C. 1c. tied by good strike of Peking bilingual c.d.s. rare cover and fine.