提高警惕捍卫领空。战备教育挂图之三 Tigao jingti hanwei lingkong. Zhanbei jiaoyu guatu zhisan Designer Designer unknown (未知) Date 1962, June Publisher Jiefangjun huabaoshe (解放军画报社) Size 77.5x53.5 cm. Call nr. BG E15/491 Collection Landsberger collection Theme The PLA in 1962 People's Liberation Army Air Force Link to IISH catalog https://search.iisg.amsterdam/Record/1136908
