Gokaikō Yokohama daiezu
Publisher: Hōzendō
Published: 1859
Place of publication: Tōkyō
Language: jpn
Subjects: History; Maps; Foreign economic relations
Notes: Colored map of Yokohama harbor as it opened to foreign traders. Includes the local villages, foreigners' centers and Japanese and foreign ships.

Not listed in Kokusho Sōmokuroku.

The preface to the map mentions that the port is now open to themselves understand the scope of foreign trade.