Two White Jade Archaistic Vases Qing Dynasty, 18th / 19th Century

comprising a gu-shaped vase resting on a splayed foot and surmounted by a tall trumpet neck, the bulging central section carved with a pair of taotie masks, between archaistic low-relief leiwen and cicada leaves bordering the foot and neck, the exterior further detailed with vertical rectangular flanges, the stone of a celadon-white tone; and a small ovoid vase surmounted by a short neck, the shoulders set with a pair of twin tubular handles, the foot bordered with pendent lappets, the even white stone smoothly polished