A pair of clair-de-lune-glazed stem bowls, Yongzheng six-character marks in underglaze blue and of the period (1723-1735). Photo Christie's Image Ltd 2014.

Each bowl has deep rounded sides rising from a tall, ribbed spreading stemmed foot, covered on the exterior with an even light blue glaze stopping neatly around the foot. 7 ? in. (18 cm.) diam. Estimate £30,000 – £50,000 ($50,370 - $83,950)

Provenance: Formerly in a private Hong Kong collection, amassed in the early 20th century.

Christie's. FINE CHINESE CERAMICS AND WORKS OF ART, 13 May 2014, London, King Street - http://www.christies.com/