Public domain
Tamagawa Jōsui Records [31]: One Case of Construction of the Tamagawa Jōsui, Including the Blowing-Up Section at Hanzōmon Gate, the Moat Inside the Gate, the Hidden Pipe, and the Manhole, from the 5th to 11th Month of the 4th Year of Kōka (1847), Part 1
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Subjects
Credit line玉川上水留 [31] 玉川上水吹上掛半蔵口御門前段堀内潜樋出枡共御普請一件 弘化四未年五月より十一月 分冊ノ一. National Diet Library, Japan. Public domain.