MINAMOTO,Yoritomo Document, dated 1185(Documents of the Shimazu family)
A schooner following to HMS Providence by Broughton, dated 1796
(Documents of the Shimazu family)
All the activities of the Institute are based on its large collection of source-material.
The diligent search for such material has been going on since the earliest days of the Institute's work, not only in Japan itself but also in those foreign countries with which Japan had commercial or cultural relations in former times.
Source-material thus discovered, if not acquired by the Institute, is copied either photographically or by hand. The Institute possesses a great number of exact, full-size tracings made with brush and India ink or coloring materials on thin Japanese paper, some of which are real works of art.
Many original documents, including seven registered national Important Cultural Properties, are also in the possession of the Institute.
One notable collection comprises practically all the documents of the old family of Shimazu, the feudal lord of the province of Satsuma, now Kagoshima prefecture.
The bibliographical data of books cataloged since 1991 is retrievable through JBCAT/NACSIS-IR or OPAC(The University of Tokyo Library Union Catalog).