Sotheby's Previews Its London Contemporary Sale June 17, 2009 by Marion Maneker More from Art Market MonitorConnoisseurs Face Off Against Forensics Because of Pollock’s Polar BearBrazilian Swindler's Art GameFeigen's Max Stern Painting RevealedSotheby’s London Contemporary Day Sale = £16.5mThe Economist v. Ségalot, pt. 2Walton Ford Joins Alice Walton's Museum