1943-1948 a group of 6 covers to Yunnan, including examples from Sikang, West Szechuan, East Szechuan, Kweichow. Interesting examples
1943-1948 a group of 6 covers to Yunnan, including examples from Sikang, West Szechuan, East Szechuan, Kweichow. Interesting examples include multiple official covers from small towns. Very scarce.1943至1948年間本省和外省（西康、西川、東川、貴州）寄雲南的信件，含重慶綏靖公署官封、碧江設治局，是人口或經濟發展未達到縣級之行政單位十分稀罕。
