拍品描述： 1896年12月11日寄芜湖封, 贴厦门半仙加盖票两枚, 分别以蓝色或黑色加盖 (其中一枚的 "a" 字破版), 销清晰厦门日戳, 封背盖红色12月15日上海书信馆到达戳, 罕见的贴用厦门加盖票的商埠间实寄封, 品相中上.源流: 2001年11月Charles Goodwyn.Amoy Covers 1896 (11 Dec.) opened-out envelope to Wuhu bearing "<I>Half Cent " on 4c. brown with surcharge in blue (broken "a") and "<I>Half Cent" surcharge in black, both tied by a good strike of the Amoy c.d.s. in black and showing, on the reverse, Shanghai Local Post c.d.s. (15.12) in red. A good inter-port cover and scarce use of these surcharged stamps. Photo