Wanhun shi gemingde xuyao 晚婚是革命的需要 Designer Designer unknown (佚名) Date Early 1970s Publisher Office of the small leading group for birth control under the revolutionary committee of Wuhan (武汉市革命委员会计划生育领导小组办公室) Size 77x53 cm. Call nr. BG E15/272 Collection Landsberger collection Theme Working Women Population Policy Tags China poster Chinese propaganda woman welder industry construction family planning population policy welding helmet industrial plant slogan Daqing