Chinese porcelain Dou or altar vessel

Chinese porcelain Dou or altar vessel, having a high domed lid with a knob finial, an incised text inscription at the rim, and a leiwen band, above a globular body with a band of incised archaistic geometric decoration, flanked by ring handles, the whole rising on a tall flared stem foot, having a turquoise glaze, the underside with a relief molded six character Qianlong mark, 7"h x 5"w.