1910年3月12日古城子寄东京双邮资带原信破剖封, 贴蟠龙2 分三枚, 销清晰的新疆/古城子日戳, 封背有另一清晰邮戳, 迪化中转戳, 再经由哈尔滨, 宽城子及于4月14日到长春盖日本客邮戳, 并在4月20日盖日本到达戳, 封面的地址以维吾尔文及中文书写, 至1922年尾为止, 寄日本的邮费是特别减费的3 分, 又此封经西伯利亚铁路再穿越满州及朝鲜半岛而到日本, 共经过39 天才送递目的地; 相信这是最早由新疆的中华邮政寄出之商业信函.SinkiangChinese Imperial PostKuchengtze1910 (12 Mar.) opened-out, double rate envelope to Tokyo bearing C.I.P. 2c. (3) tied by fair strikes of Sinkiang/Kuchengtze datestamps with a clearer strike on the reverse and bearing transit strikes of Tihwa (7.2), Harbin, Kwanchengtze and Changchun Japanese P.O. c.d.s. (14.4) plus Honjo arrival (20.4); some soiling and with the original contents. There was a special reduced rate of 3c. for letters to Japan (until end of 1922), this mail was sent via the Trans-Siberian railway through Manchuria and Korea. Addressed in Uyghurian script and Chinese, transit time was 39 days. Believed to be the earliest commercial covers using the Chinese Post Office in Sinkiang. Photo
