“The art trade, the most discontented profession on earth apart from farmers, has been groaning for nine years about lack of buyers. In 1999, as times turned good, it groaned about lack of sellers. For all its moans, it has done well in pulling pictures out for sale.” The Maastricht European Fine Art Fair showcased a stellar body of “hidden treasures” this year. The Fair closed yesterday, but here’s a top-10 list of masterpieces still available for sale. – London Evening Standard