为革命勤奋工作 Wei geming qinfen gongzuo Designer Zhao Weiliang (赵渭凉) Date 1973, June Publisher Shanghai renmin chubanshe (上海人民出版社) Size 77x53 cm. Call nr. BG E39/668 Collection IISH collection Link to IISH catalog https://search.iisg.amsterdam/Record/1287665
