Numbers of Chairman Mao badges are displayed in a shop window of Nanjing City, east China's Jiangsu province on August 21, 2013. Badges depicting Chaireman Mao Zedong first appeared in China during the 1930s. From the mid-1980s Mao memorabilia became very collectible and Mao badges could be bought at flea markets across China. Till now the badges also gain popularity among Chinese collectors. (Photo/Yang Bo) |