ca 1908 a pair of pre-printed telegram covers fom Kiachta and Peking to Urga Amban, reflecting that telecommunication was available between
ca 1908 a pair of pre-printed telegram covers fom Kiachta and Peking to Urga Amban, reflecting that telecommunication was available between Peking and Siberia. Scarce.約1908年一對預印電報封，由恰克圖及北京寄庫倫大臣，反映北京與西伯利亞間已可進行電信。難得。
