祖国领空不容侵犯 Zuguo lingkong burong qinfan Designer Wen Yongxiong (温勇雄) Zong Qixiang (宗其香) Date 1955, March Publisher Renmin meishu chubanshe (人民美术出版社), Beijing Size 78x54 cm. Call nr. BG E11/991 Collection IISH collection Theme People's Liberation Army Air Force (PLAAF)