You know you’re among the masters when one of your practice sketches draws a higher price at auction than most artists could hope to get for their entire collection of completed works. Being known throughout the world by only your first name is another good sign. Raffaello Sanzio da Urbino (a.k.a. Raphael) was one of the greatest painters of the Italian Renaissance in the early 16th century, so perhaps it should come as no surprise that his black chalk drawing titled simply Head of an Apostle recently sold for $47.8 million at a Sotheby’s auction in London. The gavel […]