Public domain
Kanda Upper Water Record [17]: One Case of Construction of the Water Troughs Attached to the Side of Suidōbashi Bridge and Other Stone Water Troughs; From the 2nd Year of Kaei to October, 3rd Year of Kaei; Office of Public Works; Part 2
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Subjects
Credit line神田上水留 [17] 神田上水水道橋脇掛樋其外石垣樋枡御普請一件 嘉永ニ酉年より同三戌年十月 御普請方 分冊ノ二. National Diet Library, Japan. Public domain.