Lot 30. Seven blue-glazed bowls, Daoguang seal marks and period. Diameter 7 in., 17.7 cm. Estimate 15,000 — 20,000 USD. Lot sold 50 000 USD. Photo: Sotheby's.

each with deep rounded sides rising from a slightly tapered foot to a flared rim, applied overall with a deep blue glaze thinning to white at the rim, the base glazed white and inscribed with a seal marks in underglaze blue (7). 

 Sotheby's. Monochrome, New York, 15 sept. 2015