This collection belonged to the Machino family, who served for generations as village headman of Kotehashi Village, Chiba District (present-day Kotehashi-cho, Hanamigawa-ku, Chiba) from the Edo period to the Meiji Era (1650s to 1880s). The content ranges widely from annual tribute taxes to other administrative records. “History of Chiba City (Annals 8: Modern Period)” (published in 1997) contains a list of materials and some transcripts.
The Machino family contributed the collection to Chiba University in 1957.
National museum of Japanese history has digitized materials held at Chiba University Library and published them on the web, as a collaborative project for the creation of " the comprehensive material studies " under the comprehensive partnership agreements between Chiba university and National museum of Japanese history”. Utilizing the function of IIIF, it links from this collection to the site of National museum of Japanese history.