1906/1909 Postal history collection, contained within a book folder, comprising 56 picture postcards, an original correspondence from an engineer to Ballens, Switzerland, includes Yunnan Indochina route, with better frankings, mostly China stamps, different town origins, some Indochina, one registered, noted 34 rare square irregular types of small Chinese rural chops, content refers to MA KRA TIEN, Hokow, MA FAN TIEN, Lao Kay, an exceptional group seldom offered.
