实践一次提高一步 Shijian yici tigao yibu Designer Wang Shuanggui (王双贵) Date 1973, July Publisher Tianjin renmin meishu chubanshe (天津人民美术出版社) Size 53x77 cm. Call nr. BG E15/929 Collection Landsberger collection Theme The People's Liberation Army Air Force (PLAAF) Tags China poster Chinese propaganda 1973 air force pilot airplane airfield model airplane film book pen People's Liberation Army Air Force PLAAF