Original Nakai Collection consists of about 2,500 materials passed down in the Nakai family, a Tokugawa Government's master carpenter family in Kyoto, including plans of Nijo Castle, Kyoto Imperial Palace, Shimogamo Shrine and other shrines and temples, concerning documents or maps. The original collection is now divided into the holdings of several institutions such as Kyoto University Library, Imperial Household Archives, Library and Archives of Kyoto Institute and the Osaka Museum of Housing and Living. The materials held by the Osaka Museum of Housing and Living are well acknowledged for their value in the architectural history research and designated as important cultural properties, while the research in the materials held by Kyoto University Library has not yet progressed very much.
In 2016, however, Kyoto University Library digitized 68 maps of Nakai Collection, which are now available below in high-definition images.
We are now digitizing 249 plans of Nijo Castle and expecting to publicize them by the end of March, 2018.