[北京].[Beijing]. No publication details. (circa1970). Coloured Chinese Air Defence poster incomplete set consisting of 9 posters, each poster is numbered. The set includes poster numbers 4, 8, 10, 11, 12, 13, 14, 15, and 16. These posters are in secondhand condition. The posters show some creasing with a number of... More about 防空常識挂图.[Fang kong chang shi gua tu].[Chinese Propaganda Poster Set (Incomplete) - Air...