A blue and white 'dragon' bowl, Zhiyuan Tang zhi mark, Qing dynasty, Qianlong period. Estimate 20,000 — 30,000 GBP. Photo Sotheby's

well-potted with deep rounded sides rising from a straight foot to a flared rim, the exterior brightly painted in rich cobalt-blue tones with two five-clawed scaly dragons striding amongst scrolling clouds, their mouths opened revealing sharp fangs, all above tumultuous waves crashing on stylised rocky mountains, the rim and the foot encircled by double-line borders, inscribed to the base with a hallmark reading Zhiyuan Tang zhi (Hall of Extended Remoteness) within a double-square - 17cm., 6¾in.

Provenance: Collection of Tore Borströms.

Exhibition: Helsinki, Finland, 1956.

Sotheby's. Important Chinese Art, Londres, 11 nov. 2015, 11:00 AM