A camerawoman walks past Clifford Possum Tjapaltjarri?s aboriginal painting "Warlugulong", which is to be auctioned at Sotheby's in Sydney July 12, 2007. Sotheby's in Australia will this month auction up to A$9.8 million ($8.5 million) worth of aboriginal art, with Tjapaltjarri?s "Warlugulong" 1977 expected to fetch A$1.8 million to A$2.5 million ( $1.5 million to $2.1 million), which is estimated at more than double the previous record for an Aboriginal painting at auction. REUTERS/Mick Tsikas (AUSTRALIA)