General coverage of the Chinese coast from Wenzhou to Dandong, the North and South Korean coasts in their entirety, and the Russian coast east to Nakhodka. Also includes general coverage of the southern tip of Japan from Yonago around to Kochi. Included in this overall general coverage are numerous detailed charts covering areas in China such as Shanghai, Qingdao, and Dalian, and also Nampo, N.Kor., Pusan, S. Kor., Chongjin, N. Kor., and Nagasaki and Fukuoka in Japan.