- A group of materials (67 cases) mainly regarding the Niju-maru Gumi within Kousuisha, a sericulture industry association founded by descendents of samurais in Gunma prefecture in the early Meiji period.
Searching the Catalogue
- This can be searched on UTokyo OPAC. On the Series section of the Bibliography field, 交水社資料 will appear.
To browse, please search for “交水社資料” on UTokyo OPAC.
- Resources and Historical Collections Office