Public domain
Kankyo Yuki: Sonkeikaku Zankan, Parts 1 and 2
From the collection of National Diet Library, Japan. Free to download, adapt and use — no permission needed.
Credit line閑居友 : 尊経閣叢刊 上,下. 昭和15. 侯爵前田家育徳財団. National Diet Library, Japan. Public domain.
