庆祝五一劳动节!庆祝我们的新成就! Qingzhu wuyi laodongjie! Qingzhu womende xin chengjiu! Designer Cai Zhenhua (蔡振华) Date 1955, April Publisher Shanghai renmin meishu chubanshe (上海人民美术出版社) Size 77x53 cm. Call nr. BG E16/333 Collection IISH collection Link to IISH catalog https://search.iisg.amsterdam/Record/1069017
