Great instructions, inexhaustible strength

伟大的教导无穷的力量
Weidade jiaodao, wuqiongde liliang
Great instructions, inexhaustible strength
1971, September
Shanghai renmin chubanshe (上海人民出版社)
77x106 cm.
BG G2/148

Mao visited Jiangnan Shipyard (Shanghai), January 1956, to inspect the building of submarines.

31.25093, 121.52342