There are prime opportunities these days in the Old Master drawings market, an area that’s been thriving since the recession took hold. The category is largely undervalued, but a few big sales are shining a new spotlight on the work. At Christie’s London in December, a 12-by-8-inch black-chalk drawing by Raphael brought $47.9 million. Leon Black, director of Sirius Satellite Radio and cofounder of the Apollo Global Management Group, was reportedly the buyer. – From Forbes