Protesters At Sotheby’s Arrested During Imp Mod Sales November 2, 2011 by Marion Maneker More from Art Market MonitorThird-String Old Masters RockTHE BEST OF: PULSE NYSotheby’s to Sell Orpen PortraitsBasquiat Painting Sells for $41.7 M. at Christie’s in Hong KongSaid Over SushiA Cy Twombly Blackboard Painting Sells for $60m on Private Market