The three pieces were originally thought to be a set consisting of the portrait of Yoryu Kannon (an addition to the National Treasure designation) at the center with the landscapes to the left and right and all three works were thought to have been created by WU Daozi.
元は中央に楊柳観音像（国宝の「附」として指定）、左右に山水図を配した三幅対（さんぷくつい）とされていたもので、3幅とも唐の呉道子（ごどうし）の作といわれていた。