Lot 163. A copper-red glazed bowl, Yongzheng mark and period (1723-1735). Estimate 5,000 — 7,000 GBP. Photo: Sotheby's. 

the deep rounded sides rising from a short tapered foot, applied to the exterior with a rich copper-red glaze, the white base inscribed with a six-character reign mark within a double-circle - 14.5 cm, 5 3/4  in..

Sotheby's. Important Chinese Art, Londres, 09 nov. 2016, 11:30 AM