拍品描述： 1896年6月8日美国寄宜昌外来封, 贴美国5仙票, 销模糊Trappe邮戳, 在封背有6月8日三藩市日戳, 7月7日美国上海邮政代理圆型日戳, 模糊的7月11日汉口工部日戳, 紫色7月11日美国在汉口领事椭圆形日戳, 当这信函发回工部书信馆系统后, 7月13日再盖一枚汉口工部日戳; 经不同邮政系统传递的不平凡外来封, 罕见, 保存完好.Ichang Covers Incoming Mail 1896 (8 June) envelope to Rev. H. Collins, Ichang, "c/o U,S, Consul" bearing U.S. 5c. franking tied by Trappe duplex; there is a fine array of markings on the reverse with San Francisco (8.6), "u.s.postal agency/shanghai" (7.7) , a faint strike of Hankow Local Post c.d.s. (11.7) , a fine strike of the Consulate of the United States, Hankow oval datestamp (11.7) and a further Hankow Local Post c.d.s. (13.7) when this letter was returned to the Local Post system. A rare and important incoming cover using these different postal services. Photo