1856-58.Chinese map Sea of Japan and East (China)Sea

地理全志. 上,下編 / 慕維廉 輯訳 - Sea of Japan (日本海）


地理全志　is "All-Geography book" written in China which introduce's european Geography study. They already use the name of "Sea of Japan日本海”, and "East(China)Sea東海”

http://www.wul.waseda.ac.jp/kotenseki/html/ru02/ru02_00168/index.html
Voluome 1 History of Asia
http://archive.wul.waseda.ac.jp/kosho/ru02/ru02_00168/ru02_00168_0001/ru02_00168_0001.html