清乾隆 白玉雙面雕深山訪友圖紫檀插屏 Carved to the front side with scholars and attendants amidst trees in a mountainous retreat, with a pavilion at the top of each scene; the reverse carved in lower relief with two deer and a pavillion in a similar mountainous landscape,all within zitan frame and stand. The stone is of a greenish-white color.Qing Dynasty period. Height: 15 3/4 in (40.0 cm) Width: 9 7/8 in (25.0 cm) Provenance: Property from an East Coast collection 來源：美國東岸私人多年收藏