On Monday, stamp specialist Stanley Gibbons acquired art and antiques dealer Mallett in an £8.6 million ($13.9 million) deal. Public shares of Mallett, established in 1865, rose around 22 percent
New eyes for new art? One of the world's largest antiques fairs will soon move aggressively into the business of selling modern and contemporary art and photography. The overhaul by new management is…