'Most valuable art collection ever' on show in Hong Kong

Masterpieces belonging to controversial former Sotheby's owner A. Alfred Taubman went on show in Hong Kong Friday, touted as the most valuable private collection ever offered at auction. Sotheby's estimates the 500 works will fetch US$500 million -- they include Modigliani's "Portrait de Paulette Jourdain", as well as pieces by Picasso, Degas, Willem de Kooning and Mark Rothko. "It was collected over 70 years with the great eye of Alfred Taubman... we have Old Masters, impressionists, modern pic