Lot 3089. A shell-shaped brush washer, seal mark and period of Jiaqing (1796-1820); 8.6 cm., 3 3/8 in. Estimate 300,000 — 400,000 HKD. Lot Sold 375,000 HKD. Courtesy Sotheby's.

well modelled as a flattened conch shell, with stepped layers depicting the concentric cone shape, the exterior textured with numerous spots under a pale sea-green glaze, the opening of the shell formed as the interior of the washer, painted in sepia with a scene of the seabed surrounded by gilt outlines, the underside inscribed with a six-character mark in underglaze blue.

Provenance: Christie's Hong Kong, 30th April 2001, lot 757. 

Sotheby's. Fine Chinese Ceramics and Works of Art, Hong Kong, 08 april 2011