注意前方信号确保行车安全 Zhuyi qianfang xinhao quebao xingche anquan Designer Xiao Longzong (肖龙宗) Date early 1980s Publisher Education and Propaganda Department of the Trade Union of the Guangzhou Railway Office (广州铁路局工会宣教部) Size 78x53 cm. Call nr. BG E15/948 Collection Landsberger collection Theme Visualizing the Future
