PROPERTY FROM A PRIVATE COLLECTION AN FINE IMPERIAL TURQUOISE GLASS LIBATION VESSELQianlong four-character mark at the cardinal points on the base interior edge and of the period The vessel of trumpet shape with high relief carving to the surface depicting a continuous scene of lotus plants rising from a cluster of eight roots ( rhizome ) that encircle the base and form the foot, from these rise multiple lotus stems ( petiole ) with folding-edged pads, lotus fruit (seed pods), lotus flowers and a single bullrush with three egrets flying above, the interior plain, the mostly opaque glass with areas of semi translucence where the decoration is cut more thinly. 5 3/4in (14.6cm) diam., 4 1/4in (10.7cm) high 清乾隆 蓮池水禽紋孔雀藍料仿犀角杯 《乾隆年製》楷書陰文刻款