Lot 1. A Carved Rhinoceros Horn Libation Cup, Qing Dynasty, 17th-18th Century; 14cm., 5 1/2 in. Estimate 4,000—6,000 GBP. Lot sold 5,000 GBP. Photo Sotheby's 2008

naturalistically carved in the form of a flower, borne on a leafy budding stem curling around the base to form the foot, and up to the rim to form the handle, the horn of rich toffee tone. 

Sotheby's. Fine Chinese Ceramics and Works of Art. 05 Nov 08. London.