Document of Samurai Class 先祖書

Certified Copy of the Land Lease Deed

Materials Related to Ishii Ryōsuke’s Time at Tokyo Prefectural Daiichi Junior High School

Manuscript of “Kapparon”

National Defense Contribution Receipt

Copy of “Shikimoku Tsuika no Jōjō”

Manuscript of “Research on Medieval Real Estate Litigation Law” (Partial)

Private Document

Administrative Guidelines for Distributing Civilian Gas Masks

Manuscript of “Subsection 3: Removal and Supervision of Court Officials”

Materials Related to Ishii Ryōsuke’s Time at Tokyo Prefectural Daiichi Junior High School

Private Document

Private Document

Manuscript of “Nihon Makura”

Record of Gifts Celebrating the Seventh Birthday of Yōji

Document of Samurai Class

Private Document