声音真好听 Shengyin zheng hao ting Designer Yuan Ruyun (原儒云) Date 1980, August Publisher Tianjin renmin meishu chubanshe (天津人民美术出版社) Size 53x77 cm. Call nr. PC-1980-001 Collection Private collection Notes The children have built a radio (using a construction kit). Tags China poster radio child propaganda Chinese soldering iron 1980 Pioneers certificate curtain book battery