Painting Conservator Paula Dredge inspects one of the paintings to be exhibited as part of Aboriginbal artist Clifford Possum Tjapaltjarri's retrospective at Sydney's New South Wales Art Gallery May 10, 2004. The exhibition will include more than 50 of Clifford Possum's paintings and sculptures, which include some of the largest and most complex Aboriginal paintings ever produced, and have been obtained from national and private collections from all over the world. REUTERS/David Gray DG/SH