AMS 1. Alternate title: P'yongang (Heijo), Korea. In upper left margin: Korea city plans 1:12,500. Polyconic projection. Relief shown by 10 meter contour intervals and spot elevation. Depth shown by fathoms. Korean names transcribed according to the McCune-Reischauer system. Japanese forms of Korean names (shown in parentheses) transcribed accorcing to the modified Hepburn (Romaji) System. Inset: Jido navy coal mine region (1:62,500).