机器耒耕地一人抵千人 Jiqi lei gengdi yi ren di qian ren Designer Yu Yunjie (俞云阶) Pan Jieci (潘絜茲) Date ca. 1950 Publisher Jiaoyu chubanshe (教育出版社) Size 38.5x52.5 cm. Call nr. BG D91/104 Collection IISH collection Theme Early Industrialization (1950-1955) Early Campaigns (1949-1954) Link to IISH catalog https://search.iisg.amsterdam/Record/1526723
