Charts. Eizan Kô and approaches, Tyôsen, west coast, Nippon, survey of Imperial Japanese Navy, 1928, [scale] 1:75,000 (lat. 35°); Mok'po (Moppo Kô) Ko, Korea (Tyôsen), west coast, Nippon, survey of Imperial Japanese Navy, 1928, [scale] 1:15,000; H. O. Miscel. no. 10,010-130. n. p.