PFR142681 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, Ch\'ing dynasty (carved celadon\'white nephrite jade) (see 142649 and reverse 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.