Public domain
Two-Part Commentary on the Manyōshū: 6 Volumes [4]
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Credit line古今和歌集両度聞書 : 6巻 [4]. 宝永6(1709). 東, 常縁, 1401-1494. National Diet Library, Japan. Public domain.