1896年9月28日重庆寄云南蒙自银二分邮资片, 寄件人于左下端注明经海防(Haiphone), 销紫色长方框型中英文日戳, 其下盖11月10日老街/东京(Laokay/Tonkin)日戳, 这是一极为珍罕的邮资片, 由于当时没有直接的邮路往蒙自, 需先由水路沿长江递往上海, 再经海路往海防, 然后沿北越红河上溯老街转河口再邮递抵云南蒙自, 片有黄斑及些老化; 但此片是存世仅见由重庆经越南到云南的银二分邮资片.1992年9月Frederick and Tomiko Barlett.Chungking Postal Stationery 1895 Two Candareens 1896 (28 Sept.) 2ca. card to Augustine Henry of the Imperial Maritime Customs, Mong-tse, Yunnan "via Haiphong" bearing the Chungking oblong datestamp in purple with a good strike of "laokay/tonkin" (10.11) c.d.s. below. A rare and extraordinary card. There was no direct route to Montze so this card was carried down river to Shanghai, thence by paquebot and rail to Haiphong and its destination. The message is written by Archibald Little. There is a vertical crease and some light tone spots. This is the only recorded item to Yunnan transiting through Vietnam. Photo