A rhinoceros horn 'prunus and chilong' libation cup, 17th-18th century. Photo Bonhams.

The reddish brown horn naturalistically carved as a knotted prunus trunk, the smoothly hollowed interior with a delicate chilong clambering up to entwine itself amongst the thorny blossoming prunus branches forming the handle of the cup, wood stand. 15.5cm (6 1/8in) long (2). Estimate £20,000 - 30,000 (€24,000 - 36,000)

Provenance: a European private collection and thence by descent

The prunus was a popular subject for rhinoceros horn carving, offering the craftsman the opportunity to contrast the rounded gnarled knots of the trunk with its spiky thorns and delicate blossoms. It is interpreted as a symbol of perseverance and purity, and since it blooms in winter upon withered branches, it also represents vigorous old age and the promised renewal of spring.

Related prunus libation cups include a 17th century cup illustrated by T.Fok, Connoisseurship of Rhinoceros Horn Carving in China, Hong Kong, 1999, nos. 112 and another cup with similar uncrowded blossom decoration which curls over the rim of the cup, illustrated by J.Chapman, The Art of Rhinoceros Horn Carving in China, London, 1999, p.169, pl.215.

Bonhams. FINE CHINESE ART. London, New Bond Street, 15 May 2014 - www.bonhams.com