The waterless shell Minasegai (title on object) A comparison of Genroku poems and shells (series title) Genroku kasen kaiawase (series title on object), Frogs sitting on stones in a cage. Behind it a folding screen with the image of a man on horseback accompanied by servants. The three books on the floor refer to a collection of poems from the 15th century. The image on the screen refers to General Minamoto no Yoshiie at the Ide river. The frogs that do not sit in the water, but on stones, refer to the title of the print. With two poems, screen, folding screen, Katsushika Hokusai (mentioned on object), Japan, 1821, paper, colour woodcut, h 198 mm × w 178 mm