清 白玉人物故事紋牌 Qing Dynasty period. The flattened rectangular plaque carved to one side with an elderly immortal sitting upon a turtle while travelling through the sea, the reverse with poem inscription, the well-polished stone of white tone. Height: 2 1/2 in (6.3 cm) Length: 1 3/4 in (4.2 cm) Width: 3/8 in (0.7 cm)