Including two of thin circular section centered by a shou character,the first surrounded by a border of confronting dragons and carvedfrom stone of buff gray with patches of black, the second borderedby repeating scroll work and carved from stone of gray-green hue;a third of square section reticulated in geometric patterns andcentered by a reticulated wanzi medallion, of translucent green-graycovered in whitish inclusions; and a fourth of compressed bi-diskshape surrounded on the short ends by scrolling chilong motifs oftranslucent whitish gray-green hue mottled in cloudy inclusions.2 3/4in (7cm) length of fourth and longest