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ColBase (National Institutes for Cultural Heritage, Japan): image published under Creative Commons Attribution 4.0 (CC BY 4.0), stated as schema:license on the item's own access record in Japan Search. Attribution required; terms: https://colbase.nich.go.jp/pages/term?locale=en
印仏巻物阿弥陀如来像(5.印仏小巻子仕立 如意輪観音(延元三年在銘願主貞清の「爪」を軸に入れる)上・中・下. . ColBase (National Museums of Japan).