Chinese rhinoceros horn log raft carving,  17th-18th century.  Photo courtesy Freeman's

 The well-carved, openwork vessel shows Zhang Qian riding comfortably in his hollowed log raft; horn of dark burnished patina; with well-carved openwork wood base resembling turbulent water.  L: 5 3/4 in. Very dark patina, some handling wear but no evidence of major breaks, losses or repairs.  Estimate $10,000-15,000 

Freeman's. FINE & DECORATIVE ASIAN ARTS.  Saturday, September 10 at 10am www.freemansauction.com