Auction 170 International Autumn Auction 2020 Day 3

CHINA-LITERATURE-BOX with catalogues and books, many of them related to air mail issues and postal history, among them "Luftverkehr in China 1928-1949" by B. Wiethoff, "Flugpionier in China" by M. Springweiler, both written in German, "Postage rates of China" by Sieh/Blackburn, "The Dragon's Wings" by W. Leary, "The Chinese Air Post 1920-1935" by Starr/Mills, "Chinese Airmails & their Forgeries" and "... Sinkiang Provisional Airmal Stamps 1932-1933" both by David Lu, also "China: The Postal History of Mongolia" by Wei Gang and Zhu Qi Ongshan, a book about early picture-postcards from China and some more smaller booklets and publications