1913年5月17日开封寄北京长型封, 贴带右边纸帆船叁分票, 深蓝绿色, 销开封中英文日戳, 旁有另一相同日戳, 封背盖红色开封六号信柜戳, 另有两枚5月18日不同的北京到达戳, 信封有些少老化的斑痕; 因为帆船票发布于1913年5月的某日, 故这封是有记录以来最早贴用帆船票的最珍罕及重要之实寄封. China1913-33 Junk Issue1913 London Print1913 (17 May) long envelope to Peking bearing 3c. deep blue-green (with right margin) tied by Kaifeng English/Chinese c.d.s. with a second strike alongside and, on the reverse, Kaifeng No.6 Letter Box postmark in red and two different Peking arrival c.d.s. (18.5); there are a few light age marks which are of little significance. This is the earliest recorded date of use of the Junk Issue which were released sometime in May 1913. A highly important cover from this issue. Photo
