Bronze Plaque with Line-engraved Zao Gongen' (in Soji-ji Temple of Nishiarai-taishi Shrine, Tokyo Prefecture) (National Treasure) which was excavated at Yoshino, is a bronze plaque with line-engraved Buddhas including Zao Gongen and has an inscription of 1001, so that it is suggested that the iconography of Zao Gongen had been established before around this time.
吉野から出土した、国宝の「鋳銅刻画蔵王権現像」（東京・西新井大師総持寺蔵）は、銅板に線刻で蔵王権現などの諸仏を表わしたもので、長保3年（1001）銘があり、この頃までには蔵王権現の図像も確立していたことがわかる。