写挑战书 Xie tiaozhanshu Designer Ding Hao (丁浩) Date 1955, September Publisher Shanghai renmin meishu chubanshe (上海人民美术出版社) Size 78x55 cm. Call nr. BG E16/357 Collection IISH collection Notes Theme The Yangzi River Bridge in Wuhan Link to IISH catalog https://search.iisg.amsterdam/Record/1069754 30.55, 114.282
