These are documents and printed/handwritten copies (418 items) from the early modern and modern periods, reclassified as Classification 5‑Z (Historical Manuscripts), among materials previously classified and stored as Classification 5 (economic history, economic situations (Japan)) at the Library of Economics.
The collection mainly consists of materials purchased from antique bookstores between the end of the Taisho era to early Showa era, and is believed to be collected by Faculty of Economics Professor Emeritus Tsuchiya Takao.
Contents are diverse, but there are some that are in substantial groups, such as the Tokorono-mura in Tsugagun, Shimotsuke-no-kuni (currently Nikko City, Tochigi) Documents.