18th/19th century The chilong with finely incised mane, knobbly spine and curling bifurcated tail standing on a high rectangular seal, intertwined with an arched handle, clasping in its jaws a sprig of lingzhi fungus, the seal face carved in seal script with 'qin shu ziyu' (琴書自娛), which may be translated as 'playing the qin and writing calligraphy to entertain oneself', the stone of pale grey tone with frosty-white inclusions. 4cm (1 5/8in) high.