家家清掃,天天清掃,室內清潔,室外清潔。 Jiajia qingsao, tiantian qingsao, shinei qingjie, shiwai qingjie Designer Designer unknown (未知) Date ca. 1952 Publisher Fujian Province Association for the Popularisation of Science and Technology, Fujian Province People's Science Academy (福建省科學技術普及協會, 福建省人民科學館 ), Fuzhou Size 76.5x36 cm. Call nr. PC-1951-015 Collection Private collection Theme Patriotic Health Campaign (1952)