1900-1920s a group of 3 covers from Mengtsz and Yunnanfu French PO, f.w. unovpt. Navigation and Commerce, France type issues as well as
1900-1920s a group of 3 covers from Mengtsz and Yunnanfu French PO, f.w. unovpt. Navigation and Commerce, France type issues as well as 1903 surch 15c/25c and 1919 surch 16c/25c . French Indochina stamps were valid in Yunnan French post offices. 1900至1920年代一組三件出自蒙自及雲南府法局之信封，貼 未加蓋航海及商貿神像、法蘭西像、1903年改值15生丁蓋25 生丁及1919年改值16生丁蓋40生丁票。印支票於雲南法局同 樣有效。
