点滴不浪费勤俭为企业 Diandi bu langfei qinjian wei qiye Designer Spare Time Art Group of the Shanghai Workers Cultural Palace (上海工人文化宫业余美术创作组) Date 1966, April Publisher Shanghai renmin meishu chubanshe (上海人民美术出版社) Size 77x53 cm. Call nr. BG E15/748 Collection Landsberger collection