Public domain
Thirty-two Types of Customs: Ni-a-i-sa-sou (Intimate-like) Customs of Yoshiwara Geisha in the Koka Period
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Credit line風俗三十二相 にあいさう 弘化年間廓の芸者風俗. 明治21. 芳年. National Diet Library, Japan. Public domain.