Alternate title: Yokohama. Polyconic projection. Names transcribed according to modified Hepburn (Romaji) system. Relief shown by 10 meter contour intervals and spot elevations. Depth shown by fathoms. In upper left margin: "Japan city plans 1:12,500". In upper right margin: "Tokyo and environs, sheet 18". Includes "Glossary". On verso: "Administrative unit names". "Reproduced from compilation manuscript by overprints."