Zheng Guogu, Waterfall, 2003. photo Philips de Pury & Cie Wax, paper, metal armature. Collaborative work with the Yangjiang group including Chen Zaiyan and Sun Qinglin. 210 x 140 x 140 cm (83 x 55 x 55 in). ESTIMATE £40,000-60,000 PROVENANCE Pekin Fine...