学习与掌握现代科学技术，为不断提高劳动生产率而奋斗！ Xuexi yu zhangwo xiandai kexue jishu, wei buduan tigao laodong shengchanlü er fendou! Designer Ah Lao (阿老) Date 1956, October Publisher Renmin meishu chubanshe (人民美术出版社) Size 54x72 cm. Call nr. BG E15/381 Collection Landsberger collection Theme Early Industrialization (1950-1955) Link to IISH catalog https://search.iisg.amsterdam/Record/1075151
