请进来 Qing jinlai Designer Li Wenlong (李文龙) Song Yupu (宋玉璞) Date 1973, June Publisher Shanxi renmin chubanshe (山西人民出版社) Size 53x77 cm. Call nr. PC-1973-007 Collection Private collection Notes The slogan in the back reads "The fundamental way out for agriculture lies in mechanization" (农业的根本出路在干机械化).
