1893年7月17日寄烟台女子书院的一分邮资已付封 (E1a), 销十分清晰福州书信馆代办带 "A" 字日戳, 封背有另一枚7月13日的福州书信馆代办带 "A" 字日戳, 旁有7月19日上海书信馆中转日戳 及烟台工部信馆双语到达戳. 相信是福州书信馆代办日戳的最早期使用之商埠互通实寄封, Foochow The Shanghai Agency 1893 (17 July) Shanghai 1c. postal stationery envelope (E1a) addressed to the School For Girls in Chefoo bearing a fine strike of the Foochow Agency code "A" c.d.s. in black with a second strike on the reverse (13.7) along with a light strike of Shanghai Local Post c.d.s. (19.7) and a very fine strike of the bilingual "<H>local post/chefoo" arrival postmark.A very good inter-port envelope and thought to be the earliest use of the Foochow Agency c.d.s. Photo
