New York Impressionist and Modern Results May 7, 2009 by Marion Maneker More from Art Market MonitorThe Bad and the Good of BanksySaffronart Spring Sale = $2.45mDorotheum Contemporary Sale = € 8.455mHelly Nahmad Released After 5 Months in PrisonGilbert Stuart Gets $1m in RochesterHeffel Spring Auction = C$21.8m