This 19th century Japanese netsuke by Masanao depicts reishi funguses carved in wood, showcasing the refined craftsmanship characteristic of Edo period miniature sculpture. Netsuke functioned as decorative toggles for securing containers to kimono sashes, and this example exemplifies the period's sophisticated attention to natural forms and botanical detail. The artist's skillful rendering of the fungus's organic contours demonstrates the high artistic standards applied even to these diminutive functional objects.