Netsuke: probably Illustrating Legend of Urashima Taro.

Dark brown wooden sculpture of a boy sitting cross-legged on the ground. The boy has a smiling face with long hair parted in the middle and falling down on both sides. He wears a robe with a V-shaped neckline. The left arm rests on the knee, and the right arm is bent at the elbow with the hand on the ground. A small golden turtle sits on top of the right leg. The background is plain white. The sculpture depicts a scene from "The Legend of Urashima Taro". It is a work by Tokoku.