"Dai Nippon Koi Dai Ezu" is a map of all of Japan created at the end of the Edo period. The first edition was published in 1843 (Tenpo 14), and a revised edition was published in 1857 (Ansei 4). This map depicts castle towns, post towns, and ports throughout the country in detail, making it a valuable resource for learning about the transportation network and urban conditions of the time, according to the Japan's antique book store database.  Details: Author: Fujii Ubei, corrections and supplements by Jitokusai Nishikawa Yuharu Publisher: In Edo, publishers included Suharaya Mobei, and in Osaka, Kawachiya Kibei. Contents: It depicts castle towns, post towns, and ports throughout the country.