Set of Two Antique Japanese Hirado Porcelain Netsuke Nodding Figure Monkeys Japanese Antique Meiji Hirado Porcelain Okimono Netsuke Nodding Figures Monkey Ki. Small Japanese Antique, Meiji period, Porcelain Okimono, Netsuke, Nodding Figures of a Monkey Court Figure, blue and brown glazed. These little nodding figures were often used to detect the very first vibrations from an imminent earthquake, and so were used as a warning. Approximate measurement height of each is 2.25". This item comes from the estate of a woman's long time antique business.