Reprints of military topographic maps. Original publishers include Rikuchi Sokuryōbu, Sanbō Honbu, and Chōsen Sōtokufu. Many sheets are reproductions of editions originally produced in Taishō period but revised in the 1930s. Relief shown by contours and spot heights. "軍事極祕" (highly confidential military [documents]), or "祕" (confidential) on some sheets.
Image from the Map Collections courtesy Stanford University Libraries. If you have questions, please contact the Branner Earth Science Library & Map Collections at brannerlibrary@stanford.edu.