Public domain
Eighteen Enclosures Map, plus one map of the Osaka Kyūshōin Enclosure [11] [11]: Sukiya Ezu, designed by Furuta Oribe, held at the residence of Uji Chōei Sadafusa (Size: 30.6×42.5 cm)
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Credit line十八圍之圖外ニ大阪九昌院圍之圖一枚 [11] [11]: 数奇屋繪圖 古田織部好 宇治長井貞甫宅有之 (大きさ:30.6×42.5cm). 文政7 [1824]. National Diet Library, Japan. Public domain.