Wood body; gold, silver, and aokin maki-e with shell inlay on a polished black-lacquer ground with relief modeling; the interior surfaces gold nashiji; the base polished black lacquer
Signed on the base with gold maki-e characters Yoshio tsukuru (Made by Yoshio)
With fitted kiri-wood tomobako storage box inscribed Maki-e hako Yakōju (Box with sprinkled design, “Night-Shining Jewel”), signed Yoshio tsukuru (Made by Yoshio) and sealed Yoshio
Okada named this box Yakōju (“Night-Shining Jewel”) to evoke the image of the moon casting its light at dead of night, like a precious jewel hanging in the sky. His choice was perhaps influenced by the fact that the related word yakōgai 夜光貝 denotes the turban shell (Turbo marmoratus), whose thinly cut inner lining is frequently used in lacquer decoration.