Gaizao Huanghede weida jihua 改造黄河的伟大计划 Designer Designer unknown (佚名) Date 1956, February Publisher Zhonghua quanguo kexue jishu puji xiehui (中华全国科学技术普及协会) Size 78x54 cm. Call nr. BG E15/801 Collection Landsberger collection Theme First Five Year Plan (1953-1957) Tags China poster Chinese propaganda 1956 river Huang He Yellow river 五年计划 Five Year Plan dam map water conservancy