PFR142649 Desk screen, probably depicting \'Pai-un-tung\' (White Cloud Cave), probably Mount O-mei and the White Cloud Temple in Szechwan, made by the Imperial workshops of the Ch\'ien Lung Emperor 1736-95, Ch\'ing dynasty (carved celadon-white nephrite jade) (for detail see 142681 & for reversed 142650) by Chinese School (18th century); height: 29.5 cm; Private Collection; (add.info.: Pai-yun tung may also be Mount Hui, near Wu-hsi; Mount O-mei is the tallest of the sacred Buddhist mountains;); 穢 Paul Freeman; Chinese, out of copyright.